How much boiled water can be stored – the exact term and other recommendations
- Water is one of the most widespread substances in nature .
- It plays an essential role in the history of the Earth and the emergence of life on the planet.
- She took and is taking an active part in shaping the environment – chemical and physical, weather, climate.
- Water forms seas and oceans, rivers and lakes, its vapors are part of the air, it fills the cells of all living organisms.
- Even human bones contain 45% moisture.
- Moreover, this simple substance is an indispensable component when it comes to technological processes .
DefinitionAs you know from the school chemistry course, water is hydrogen oxide , which has the formula H2O, that is, it consists of two hydrogen atoms and one oxygen atom.
- In natural conditions, it also contains salts and gases.
- Usually it is odorless, and in small quantities it is colorless and transparent.
- Water acts as a solvent, reagent , heat conductor.
- At the level of organization of the living, it provides diffusion , acts as a thermostat, is a source of oxygen, a lubricant.
- In view of this demand, water is a popular commodity .
- But for different industries their own, special water is used :
- distilled – for technical, household and medical needs;
- bottled – for daily drinking ;
- mineral – depending on the chemical composition for drinking every day and medicinal purposes;
- for injection – as an integral part of medicinal solutions.
Many consumers are interested in: does the water have a shelf life and what is the reason for it? More on this later.
Distilled water is obtained by distillation in special apparatus called distillers.
- The liquid is cleared of mineral salts, microelements, after which the properties become similar to those of melt water from mountain peaks.
- Distilled water is an excellent solvent.
- It differs from ordinary water in that it has a higher boiling point and a lower one – freezing.
- Distilled water applications :
- Distilled water is theoretically drinkable .
- In particular, it is diluted with Italian grappa – a type of brandy.
- But still, it is not very suitable for daily drinking.
After all , it lacks mineral salts and microelements – indispensable components of good nutrition for a person.
- It is noticed that the less they are contained in the water , the higher the risk of developing dangerous diseases of the heart, blood vessels, as well as caries.
- Distilled water production is regulated by GOST 6709–72 .
- If distilled water is used in pharmaceutical chemistry , then its shelf life is 3 days after preparation.
After this period, the water becomes acidic, which can cause distortion of test results, affect the quality of drugs, etc.
- For other purposes, the shelf life is unlimited .
- Water is stored in closed polyethylene bottles , as well as in ceramic, glass or enamel vessels.
- But when stored in a tightly closed container, the substance can eventually acquire a musty odor .
- To avoid this, calcium chloride tubes, which are filled with lime, are inserted into the lid and covered with cotton wool.
Bottled water is one that is poured into plastic bottles and intended for distribution through retail chains .
- Organizations often buy whole packs of water bottle sets.
- The capacity of the dishes into which it is packaged is different – from 0.33 ml to 19 liters.
- In such a package, you can buy water for various purposes:
- But most often bottled water is associated with drinking .
- Drinking bottled water ( water bottles ) has different terms of validity – 3, 6, 12, 24 months.
- It depends on the purpose of the product, the quality of the container, and the presence of preservatives.
- By itself, water does not deteriorate over time .
- However, the reason for the deterioration of its taste can be the dishes .
- After the expiration of the period specified by the manufacturer, this material releases chemicals that affect the taste and safety of the product.
- It is much faster if break the conditions of storage of bottles, leaving them in direct sunlight and at temperatures above + 30 ° C .
- The network often sells water in glass bottles .
- In such dishes, water is stored and retains its freshness longer without the addition of antibiotics.
- Another question that worries consumers is how much water can be stored from an open container ?
It is better to store such water in the refrigerator and consume it within 3-5 days – the exact period of use of the product after opening the bottle is indicated on the package.
After that, you can also drink water, but it is better to boil it first , since pathogens can get into it.
If you are worried about odors in the water, then try to issue a return of the purchased water.
Mineral water is called water, which contains dissolved salts , trace elements, biologically active components.
Mineral waters are not only drinking ( table and medicinal ), but also for external use .
Many of them are widely used in spa treatment – for baths, inhalation, rinsing, irrigation and organ washing, etc.
- Mineral waters are sold for sale in volumes – 0.33–0.5 liters – in glass containers and 0.5–2.0 liters – in polyethylene containers.
- Mineral water is stored from 3 to 18 months if it is packed in plastic containers, and up to 24 months if the bottles are made of glass.
- Each mineral water has its own expiration date, about which the consumer is notified by marks on the bottle label.
- So that the product does not change its properties even before the expiration of the specified period, the distributor and the consumer must comply with the storage conditions: temperature – + 5 + 20 ° C, place – a dark ventilated room, away from sunlight, horizontal position.
Uncorked water should be consumed after 5 days at the latest. Water with organic substances ( such as naphtusi) is stored for no longer than 1 week in the refrigerator.
If the specified terms and conditions of storage are met, mineral waters from a bottle have the same effect on the body as those taken in resorts directly from sources.
Long-term storage leads to denaturation of the product – a change in taste and properties, and if you purchased such a product, then you have every right to return it .
For injectionWater for injection is a sterile liquid that is characterized by a transparent color, tasteless and odorless.
- It is obtained from drinking or purified water.
- It is used in medicine for the dilution of drugs administered in the form of injections, infusions, as well as for dissolving powder preparations.
It is also used externally – for wetting dressings, washing wounds, etc.
Water for injection is packaged in ampoules or vials .
They can be made of glass or polymer fiber, opened and used under sterile conditions.
The shelf life of water for injection, poured in ampoules, is 4 years .
Since this drug is a medicinal product, it cannot be used after the expiration date specified by the manufacturer.
- The reason for this is the reaction between the preparation and container glass with the release of toxic products, microbial contamination of the water.
- This can affect the properties of the drug for which the drug is used as a solvent, and, as a result, on the patient’s health.
- After opening the ampoule or vial, pouring water for injection into another container is prohibited .
- The rest of the water from the opened ampoule is used no later than 24 hours later, since the liquid very quickly loses its sterility.
- For further storage, the neck of the ampoule must be closed with a piece of cotton wool soaked in alcohol.
- However, experts advise still using a new portion of the drug for the next injection .
- Water, it would seem, is such a simple and unpretentious product to handle.
- However, it can also quickly lose its qualities if stored improperly, and even become dangerous to human health.
- In order for it to bring maximum benefit and retain its properties for a longer time, you must follow simple rules :
- it is better to buy water, regardless of its purpose, in a glass container;
- it is not recommended to leave water, especially mineral water and for injection, in direct sunlight;
- It is recommended to store the product in the same container in which it was purchased – it is processed in a special way in order to preserve its freshness for longer.
Is there an expiration date for water
Water, which at first glance is always the same, exists in different forms. Someone is fond of bottled water, someone likes water from a filter or from a holy spring. In any case, everyone should know the shelf life of mineral water, how much to keep bottled or boiled.
People’s concern for their health can be attributed to the immense popularity of various cleaning devices. Filters are installed in many homes, purifying not only drinking water, but also the one used for washing.
In any case, it can be stored in plastic or glass bottles for no more than a day. The absence of chlorine, which has been filtered, leads to the proliferation of bacteria. Reducing the temperature to 4 degrees can extend the period by a couple of days.
Boiled water can always be prepared, especially since it is not recommended to store it. At room temperature, a maximum of a day, no matter what: it can be a saucepan or a glass jar. The fact is that boiled water has a structure that easily absorbs various trace elements, viruses and bacteria.
If there is an urgent need to extend the shelf life of such a liquid, keep it in the refrigerator. At temperatures below 4 degrees, exposure to the environment slows down.
Every year for baptism, believers bring holy water from the church in various containers: plastic bottles, glass jars. It is believed to help heal the body and soul and can be kept at home for a whole year. Usually holy water is consumed in the morning before meals.
For storage, it is better to choose a cool, dark place, but not the refrigerator, and away from any food. It is better to store holy water in a glass container, covered with a napkin. Be sure to mark the bottle you brought from the church.
In no case should you drink from a common dish, this can spoil the holy water. Believers believe that holy water should be consumed with prayer and pure thoughts. In any case, this is a special liquid that requires special treatment.
When the supply is low, add regular tap water and all the liquid will turn into holy water.
When all the preparatory stages are passed, the purified liquid enters the filling and capping line. In modern enterprises, it is automated, and personnel contact with water is limited.
When buying bottled water in small plastic containers, remember that after opening, the expiration date of the liquid begins. Typically, the manufacturer can specify a period of up to three days.
But you need to understand that storing bottled water for so long is possible only when the container is closed and in the refrigerator.
And if water in plastic bottles is exposed to the sun, it absorbs harmful substances in a matter of hours.
As for bottled water, which is popular with office workers, it is usually bottled in containers of 19 liters. They extract it from an artesian source, pack it up and deliver it to organizations and retail chains.
Water in sealed plastic bottles can be stored for a very long time – up to one and a half years.
But you need to understand that even the water from the source will become unusable under the influence of high temperature and sunlight. The fault is plastic: it can begin to release components hazardous to health.
Therefore, replacing reusable bottles is on the conscience of companies supplying water in 19-liter containers.
The shops have a large selection of bottled mineral water. In a closed plastic container, it can be stored for up to one and a half years, subject to all conditions specified by the manufacturer. In glass containers from the date of bottling, water is good for up to two years, unless otherwise indicated on the bottle.
Storage after opening the bottle
Some manufacturers of bottled water do not write under what conditions and how long an uncorked container can be stored, shifting the responsibility to consumers. Therefore, you should know that after opening the bottle with any water must be stored in the refrigerator. The following expiration dates exist depending on the content:
- For regular drinking – up to four days
- For mineral – up to a week
If the drinking water has stood at home for more than the allotted period, it should be boiled before use. But do this only when absolutely necessary, otherwise just buy another bottle.
- Boiled water cannot be re-brought to 100 degrees. It is considered very harmful to the body, heavy metals accumulate in it.
- There are two types of bottled water. The highest category is produced in an artesian well. The one that is taken from the water supply and cleaned can only be attributed to the first category.
Disputes over what water to drink are still ongoing. Adherents of one way or another of its extraction and purification are able to give many reasons in favor of their choice.
You can filter it yourself at home, you can bring a saint from church or buy bottled in a store.
In any case, there are certain storage times that must be observed in order for the consumption of clean water to bring health benefits.
Shelf life of boiled water, the consequences of dehydration
Undoubtedly, water is a vital product for the body. Without water, our body can last much less than without food. The lack of water intake into the body affects after 24 hours. Sleepiness or just plain bad mood. It may seem to us that this is a consequence of exhausting physical exertion, mental labor.
But in fact, everything is much more complicated – these are the symptoms of dehydration. And this is already a serious problem. To somehow compensate for the lack of water in the blood, the body will “drink” water directly from the cells. Then, the cells will “dry out” and their activity is seriously disrupted.
The most sensitive are brain cells. Therefore, confusion is one of the main signs of severe dehydration. With critical dehydration, coma may develop.
Therefore, it is very important to maintain water balance in your body.
About the properties of water
Water has many properties that you need to know about and understand their benefits and harms. Our health depends on it. Let us analyze the studied properties of water.
Drinking water should have everything in order – no smell, sediment, color, foreign tastes, transparency – at least 30 cm, drinking temperature – about room temperature.
If any of these parameters are not normal, then the physiological functions of our body may suffer. First of all, under attack is the secretory activity of the stomach.
There are several parameters to consider here. But let’s break them down – briefly.
- Rigidity. Many salts are hard, few are soft. The better the soap is washed in water, the softer it is. Hard water not only dries out our skin, but also makes our hair brittle. In addition, it also causes the appearance of limescale in the kettle, washing machines, etc. Boiling makes water softer, adding a little soda, softening salts, filtration.
- Oxidability. The less oxidizability, the better the quality of the water source. If the limits are exceeded, the liver, kidneys, reproductive function, immune, nervous systems suffer.
- Surface tension. The higher the surface tension, the worse it is for us – cells have to spend a lot of energy to overcome it. And the more “liquid” or lower, the better – such a liquid easily enters into intermolecular interactions.
- PH value. The pH value is the pH value that tells about the amount of H + ions. It is customary to assess pH on a scale from 0 to 14, where 7 is the level of neutrality. The higher it is 7, the more ions it contains, and the more alkaline the liquid. And vice versa – a decrease down from 7 – indicates that acids have been added to the liquid, the level of hydrogen ions tends to zero, and the drink is gradually acidifying. Ideally, the water should be alkaline . And not only her, but also food, as well as shampoos, soaps, creams, etc.
- Distilled water is considered neutral.
- Sour – beer, coffee, tea, milk, lemon juice, pasteurized juices, lemonade and other carbonated drinks.
- Human blood (pH 7.36-7.44), sea water (8), bleach such as bleach (12.5), soda (13.5) are alkaline.
- Sour ones are milk and meat, sugar, bread (especially white), alcohol.
- Alkaline – all vegetables and fruits, herbs, beans, peas.
- The electrical conductivity of water (reading physics) is the content of dissolved salts and micro and macro elements in water. These substances are in liquids in the form of negatively or positively charged particles – electrolytes. These electrolytes play a very important role in our body. And their lack and premature loss lead to early aging.
- Oxidative-reduction potential. It shows what qualities water has – oxidizing or reducing.
- Energy of water. According to the research and experiments of some scientists, water has a memory. In other words, water is capable of absorbing any information – both positive and negative. Also, water can remember human feelings, emotions, and respond to music.
About boiled water
Most often, there is tap water in our life. Usually, it is de-suspended and contains a small amount of chlorine. It prevents harmful bacteria from growing in the water. Nevertheless, this water can be hazardous to health and it is not recommended to drink it raw. Therefore, many water is boiled and left in vessels for storage in case of thirst. However, is boiled water really that safe? Are there risks during long-term storage? What is the shelf life of boiled water?
The essence of boiling is that the water is heated to one hundred degrees Celsius (boiling point). At the same time, all harmful organisms and bacteria will die in the water. However, in this way, beneficial bacteria also die, which is also bad. Therefore, it is not recommended to use only boiled water. Nevertheless, in some situations, it is better to boil the water so that unpleasant situations do not arise.Shelf life of boiled water
Boiling water for the future is completely impractical. Also, it is not at all useful to drink the water stored in this way.
The maximum shelf life of boiled water is only 24 hours.
Why so few? The resulting special structure of water, after boiling, like a sponge, absorbs viruses and bacteria from the air.
Also, there is no chlorine in boiled water, which kills and inhibits the growth of bacteria. But you can slightly extend the storage period using the refrigerator – up to two to three days, no more.
How to store water
Water is the foundation of our life. And clean is the guarantee of our health. That is why it is so important to know what and how best to store the precious liquid. To keep it as much longer. This question arises not only when storing water at home and therefore in small quantities.
But even when we are at the dacha, then we need a supply of clean, transparent water. It is also important to know how to keep bottled liquid useful if you need to stock up for the winter. After all, the winter storage method for the summer cottage is different from the summer one. However, not only glass keeps water in the country for a long time.
These can be ceramic containers, cans or barrels, water in flasks. So what is the storage of drinking water? …
We select the tank correctly
Very often, summer residents have a question: how to store water, what container to choose so that the water remains clean.
To preserve a large volume of water in the country in winter, barrels of any size, buckets (if the bucket is galvanized) are suitable, or you can use a canister, and you can also use storage in a flask. When choosing a storage container, it is imperative to take into account what the dishes are made of, the required volume, and the shape.
We save water in plastic bottlesThe most comfortable is the plastic container, as well as the storage of water in a barrel. It is better to store water in a plastic bottle at a temperature of 20 to 25 degrees, away from light. Stopped liquid bottle can be stored for up to 12 months. Choose a dark place to store water in your summer cottage. When choosing plastic bottles, pay attention to their quality. And also, if a flask has become a preference for saving water (there are significantly fewer problems when choosing buckets).
After conducting the experiment, scientists proved that the material of the container also affects the composition of bottled water. Water must be stored in PET (E) bottles! Pay attention to the markings. A more pronounced positive effect is shown by silver dishes, from stainless steel, storage in aluminum dishes.
It is preferable to store water in a glass tank, in which the liquid can be stored longer, including for the winter, but on condition that the bottle is hermetically closed. Most often, glass containers are used to store water after freezing.
Of course, in everyday life, drinking water can be stored in a galvanized container. The question is, is it possible to boil water in it and use it for drinking? Of course, it is possible to store water in a galvanized bucket (even my grandmother always stored water in this way, and, by the way, I store it today as well), but you should not boil it. At high temperatures, zinc coating can emit toxic gases harmful to humans, which cannot be said about aluminum containers. Therefore, a galvanized bucket is not always practical in everyday life.
Store drinking water using clay utensils, which is considered an alternative if aluminum containers are not available.
- You can store water in canisters, which are also produced from frost-resistant polypropylene, with increased chemical resistance, as well as in barrels
- When stored in an enamelled container, the purity of the water changes insignificantly. In containers with the addition of enamel, the liquid is better stored if the container is treated with boiling water. Keep the reservoir closed during storage.
Thus, the best for storing water is the use of glassware, plastic, as well as aluminum galvanized containers. It all depends on having a convenient and dark storage space.
Each of us drank boiled water, but not everyone knows about its storage. It is preferable to collect boiled water in an enameled container, where it is stored under a closed lid.
Most people are interested in the answer to the question, how much can you store such water? It must be applied throughout the day.
Factors that affect water conservation
It is important that the water retains its natural qualities and is clean, without additional elements, pathogenic microorganisms.
- The easiest way to purify water is to boil it, in which the bottles are sterilized, and the liquid is cleared of microorganisms during boiling.
- The water sedimentation method is also widely used. To do this, the liquid is poured into a bowl and infused for about eight hours. During this period, chlorine, together with other elements, will evaporate (it is good when the water is mixed from time to time in order to enhance this process). However, metal salts will not evaporate, but will most likely settle to the bottom. Therefore, when using, pour out two thirds of the liquid.
- You will also learn how to preserve water by freezing. This is by far the best cleaning variation to date. Water is poured into the container (use a saucepan, water is poured into plastic containers, but do not use bottles). Do not pour the liquid to the top, as it will increase in size when frozen.
- With silver, it is possible to purify water from chemical combinations. Therefore, the shelf life of water due to this method of purification will be much longer.
Place a silver coin or spoon in the bottles for 24 hours. After a period of 10 to 12 hours, a completely pure liquid will be obtained.
A more pronounced beneficial effect on the structure of water is provided by a metal container: silver by 2.81%, stainless alloy by 2.12% and aluminum dishes by 1.39%.
When thinking about how to store drinking water, you should not lose sight of the effects of light. Scientists believe that the water structure is enriched with various additional compounds, the content of which can be reduced if the liquid is kept in the dark.
It has been established that if water is poured into a glass container, the drinking liquid is allowed to settle in sunlight, the composition in the water practically does not change during the day.
Do not store water in a plastic bottle under light. It is best to keep it in a closet, out of direct sunlight.
While keeping water in plastic bottles in the refrigerator is not considered the best option.
Despite the fact that the water looks transparent, it has a huge number of useful elements, without which the body cannot exist.
The selection of the container is important for the conservation of water, as any choice contains both advantages and disadvantages. For home use, glassware is considered a more suitable option for storing purified water.
How to store water: terms, capacities, conditions, requirements, gost, etc.
Everyone knows the saying “water is the basis of life”. It is especially relevant in our time, when tap water, for drinking and household needs, needs to be additionally purified. Someone installs filtration systems in houses, someone buys purified water in special plastic bottles. Hence the question arises, how long can water be stored in plastic, and is it possible at all?
Despite the fact that tap water undergoes multi-level purification using a variety of filters and chemicals, its quality and taste are far from the required standards.
Already after long standing, the tap water changes color, a green or rusty sediment and an unpleasant odor appear in it. It is extremely dangerous to consume such water.
How to store water
Let’s return to the topic of storing water in a plastic container. Producers of purified water claim that water is stored safely in such containers for a long time. The bulk of water bottles are made of special food grade PET (E) plastic, which does not enter into chemical reactions with the contents of the bottle, and therefore does not pose any threat to human health.
The label should be checked every time you buy water, it should be extruded onto the container. Sometimes, instead of safe marking, the abbreviation PVC is found. Such a container is made of potentially hazardous plastic that is not intended for storing food, including water.
Important! The PET (E) badge, marked on the bottle, guarantees the use of high-quality and safe plastic for its manufacture.
The shelf life of water in a sealed container is due to its original quality and varies from six months to a year, so when choosing, you should carefully study the label for the date of the spill.
The place where the water will be stored is also important. An angle without access to direct sunlight, a sufficient distance from devices that generate heat, is best suited, since the temperature regime for storing water is 20-30 degrees. Water in open bottles is stored for no more than a week.
How to store dried and dried fish
To increase the shelf life of tap water, it must first be cleaned with a filter, then poured into a glass jar and allowed to stand for some time to get rid of chlorine vapors. Then cover with a tight lid and use within three days. In the refrigerator, this water will stand for a couple of days longer.
Boiling lovers should remember that such water is of no use, since heating to 100 degrees kills not only pathogens, but also beneficial bacteria.
Such water should be kept in an enamel saucepan, covered with a tight lid, for no more than 12 hours. After this time, microbes from the environment begin to multiply in it, and boiled water can do more harm than good.
Spring water and water from wells should be stored in glass or clay containers, under a tight lid. Hermetically sealed, it can last from two to three years and not lose its useful properties. It is worth remembering that such water can only be taken from trusted sources.
What is structured water, how to get it and store it
Today, structured water is quite popular, which is considered miraculous for the human body. The structure of water changes when frozen and heated. Most often it is stored frozen in glass containers.At home, structured water can be obtained using freezing in several stages:
- To begin with, filtered water is poured into an enamel container and sent to the freezer until a thin ice crust forms. After that, this ice is removed and thrown away, because at temperatures from 0.28 to 3.8 degrees, tritium and deuterium, which are harmful to health, freeze.
- Then the water is left in the freezer until two-thirds of the volume freezes. Water that is not frozen is drained, along with the light elements and chemical additives preserved in it.
How to store pies correctly and for a long time
The ice that remains after all the freezing stages is structured water. It can be kept in the freezer and defrosted in portions if necessary. Or defrost all at once, pour into glass jars and store in the refrigerator. Many argue that storing structured water in silver dishes improves its properties several times.
In what conditions to store boiled water
Not many people ask this question, but even boiled water has its own set shelf life and some recommendations for storage. Few know how to store boiled water.
And she, in turn, is an important component of a living organism. And the state of health in general depends on the quality of the water we drink.
Everyone knows that it is important to drink a certain amount of water during the day, but not everyone betrays its quality. But in vain.
Varieties of water
For example, bottled water is most often obtained from artesian sources. These are the layers of inland waters between the layers of hard rocks. Such water is filtered, disinfected, enriched with the necessary substances and poured into containers. After opening the bottle, such water can be stored in a refrigerator with a screw cap for up to three days.
Mineral water is usually enriched with beneficial salts and minerals. It is divided into medical and dining rooms. The latter can be drunk daily. The shelf life of such water is much longer. In the refrigerator, it can be stored for up to six months. And in an unopened form, some product can withstand more than a year. It is better to drink open mineral water within a week.
Most often, there is liquid in people’s lives that flows out of the water tap. It is usually refined and contains a low chlorine content, which prevents the growth of harmful bacteria. Health-conscious people try to filter such water to get rid of harmful substances.
Not all experts approve of this decision. For the most part, the composition of tap water is controlled and all the substances that make up it are within the normal range that is incapable of causing harm to health.
The filter, in turn, together with harmful substances, possibly retains useful components necessary for the body.
Bottled water that has been left open for more than 4 days, or just water of which there is doubt, can be disposed of from harmful substances by boiling.
How much and how to store boiled water? Experts do not recommend storing liquid treated this way. The maximum time during which you can use boiled water is a day, and it does not matter in what container it was stored. This is due to the fact that the structure of the water changes during boiling. Because of this, it becomes susceptible to various viruses and bacteria and literally attracts them.
It is strictly forbidden to boil water again. Such a liquid becomes harmful and even hazardous to health due to the accumulated metals.
The refrigerator can slightly extend the storage. At temperatures of 4 degrees and below, the exchange of bacteria with the environment is slower and the liquid can be used within two days, but no more. Fortunately, boiled water can be prepared at any time and there is little need to store it.
In what container to store water
Enamel containers are best suited for storing boiled liquids. It is important to keep the container closed when doing this. Filtered water is best kept in glass bottles. In general, a glass container with a cork lid is considered the best way to store any liquid intended for consumption. Plastic lids release toxins and are therefore not recommended for this purpose.
Pottery and stoneware work well as well. Any material that does not react with a liquid and does not release additional substances into its composition is well suited for storing water.
Why boiled water cannot be stored for more than a day
Water is a vital product for the body. Without water, the body can last much less than without food. Its absence has an adverse effect after 24 hours. Drowsiness may appear or the mood may simply deteriorate. Therefore, it is very important to maintain water balance in your body.
As you know, tap water nowadays, especially in large cities, can be hazardous to health and it is not recommended to drink it raw. Therefore, many water is boiled and left in vessels for storage in case of thirst. However, is boiled water really that safe? Are there risks during long-term storage?
Of course, when boiling water, due to the high temperature in the liquid, bacteria harmful to the body die. And although at the same time it loses its natural taste, it becomes much safer.
However, during storage, like any structured substance, water has an adverse effect from the external environment.
First, it is the material of the vessel in which the water is stored. The pores of the walls of the vessel may contain microorganisms, which, during long-term storage, begin to penetrate into the liquid and multiply there.
These are the so-called aerophilic microorganisms, most of which are toxic to the human body. These are fungi, harmful bacteria, and mold.
And the better the light penetrates into the vessel and the thermal regime is increased, the more actively microorganisms develop.
Also, any harmful materials can penetrate from the material of the vessel. For example, particles of both aluminum and stainless steel can pass from metal utensils into water. All this is deposited in the human body and accumulates on the walls of blood vessels.
But the most harmful effect is plastic packaging precisely because of the harmful chemical materials in its composition.
The same is the impact from the external atmosphere. Since most do not store water in tightly closed vessels, dangerous small particles and organisms also get out of the air, which also begin to develop and multiply in a favorable environment.
How long can drinking water be stored in a plastic bottle
Today, more and more plastic water bottles can be seen on store shelves, and at the doorways there are many advertisements for the delivery of bottled water. Trading networks are happy to take water in plastic containers for sale, since it has a long shelf life.
Under normal conditions, water begins to change under the influence of light and heat, and after a while bacteria in the water give it an unpleasant odor and taste.
But how is water stored in supermarkets? The fact is that manufacturers canned all the water in plastic bottles.
There are several ways of conservation: • Adding an antibiotic; • Carbonation; • Ozonation. Water, preserved by the first method, can be stored for a very long time. But the presence of antibiotics can harm your health and lower your immunity. Carbonation and ozonation are harmless methods of preservation, but such water will be stored until the bottle is opened. Therefore, after you unpack the bottle, you need to drink this water within a few days. If you buy bottled water, you need to set aside a dark place in your kitchen or closet to store it. The optimum temperature for storing water is 15-30 degrees Celsius. Keep the water that has been recently spilled and produced in your area – it retains more nutrients. Pay special attention to the plastic that the water storage bottle is made of.
The container in which the water is stored must be made of food grade plastic.
The packaging must be marked with PET, such bottles are made from a substance called polyethylene terephthalate, it does not react with water and is safe for human health.
Never store water in a PVC bottle. The material from which it is made has toxic properties. Do not store melamine bottled water.
If there is no information on the bottle, then there is an easy way to check which class it belongs to. You need to press with your fingernail on one of the sections of the bottle. A whitish “scar” will appear on PVC plastic, but PET containers will remain unchanged. You can recognize the melamine container by tapping lightly on it – the sound will be muffled.
Canned water in a plastic bottle has a shelf life of six to twelve months; once you open the bottle, the water can be stored for up to ten days.
In addition to the shelf life of water, there is a “usefulness” period. This is the time after which most of the nutrients in the water will lose their properties. Therefore, when purchasing water in a plastic bottle, look at the bottling date – the fresher the water, the longer you can store it.
About the shelf life of water
We all drink water, but few have wondered if it has an expiration date. Most people are concerned about the quality of the product, and rightly so, as harmful microorganisms and salts negatively affect health.
However, liquid that has expired also becomes the cause of malfunctioning of internal systems. To avoid the detrimental effect of a low-quality product on the body, we suggest reading this article.
Filtered centralized water supply resource
Today, many people, taking care of their own health, buy special cleaning devices. Filtration systems are installed in many homes in Russia.
Is it true that they can be used to purify water? Yes, but one cannot ignore the following nuance: along with harmful substances, there are also many of those that are necessary for the human body.
In any case, the resource can be cleaned of salts and chlorine.
How to store filtered water? In glass or plastic containers, no more than a day! Bacteria will begin to multiply in the chlorine-free liquid after 24 hours. You can extend the shelf life by several days by placing the container in the refrigerator.
Having increased the temperature of the liquid to 100 degrees, there is no doubt about the death of microorganisms. With this in mind, most Russians boil and stand for water, after which they quench their thirst. This cleaning method is good, but not ideal.
During boiling, bacteria die, and along with them useful elements leave. It is unwise to drink exclusively cooled liquid, which has been heated to 100 degrees, you should periodically buy bottled water, 11-19 liters is enough for one person for 4-9 days.
A quality product from reliable companies will replenish the stock of elements.
It is inconsistent to boil water for the future. You can get the right amount of liquid in just 30-60 minutes. Its maximum shelf life is 24 hours. Why? The special structure of water after boiling, like a sponge, absorbs viruses and bacteria from the air. You can extend the storage period by using the refrigerator.
Everyone knows about the indicative qualitative characteristics of the resources of artesian wells. This water is bottled after additional filtration. For purification purposes, complex systems are used that do not deprive the composition of nutrients.
After filtration, disinfection is carried out using:
- safe chemicals;
- ultraviolet radiation;
- silver ions.
After multi-stage purification, the water is bottled. On the headings there are container closure dates and expiration dates. After opening, the countdown begins.
Producers of bottled water specify the time frame based on the fact that buyers will store the product at room temperature. By placing it in the refrigerator, you can not get attached to numbers. What you definitely shouldn’t do is expose the eggplant to the sun.
Water absorbs harmful substances in a matter of minutes. When sealed, bottled food can be stored for up to two years.
What is the difference between bottled and fortified product? Mineral water is rich in useful microelements in large quantities. The explanation for this is soluble salts and other additives used during the manufacturing process.
Mineral water can be used for dining and healing. The first can be consumed daily, the second – for the prevention of diseases of the gastrointestinal tract, as prescribed by a doctor.
How much is it permissible to store mineral water? Closed – about two years, open – no more than 12 hours.
Recommendations for use after opening
Companies selling bottled water rarely inform customers about the terms and conditions of product storage. After opening the lid, keep the liquid in the refrigerator.
If the water has stood at room temperature for a week or longer, then it should be boiled before use. Which action is not allowed? Repeated boiling to 100 degrees. Such a product is harmful to humans.