When Xiao Zhang was young, his family lived in the countryside, and at that time, most of the family boiled water to drink, and there were generally wells in the village.
Pick up the water with a bucket and bring the water home to boil in the kettle, and after a long time, there will be a thick layer of alkali in the kettle.
And Xiao Zhang Lao felt that the cool white boil after the raw water was boiled had a strange smell.
Later, after graduating from university, Xiao Zhang rented a house and began to drink bottled water, which was convenient and tasted, and there was no strange smell after the raw water was boiled.
But some time ago, when she accidentally watched the video, she found that some people said that boiling water is actually healthier to drink, and drinking drinking water directly is actually not as healthy as imagined.
This made Xiao Zhang wonder, isn't this kind of bottled water drunk directly disinfected? Why do you say that? Let's continue to look down.
1. How is bottled water sterilized?
Water is an indispensable substance for our human body, and it is also the source of life, as the saying goes, you can live for seven days without eating, but you can only live for three days without drinking water.
Now, with the development of science and technology, there are more and more types of water, such as mineral water, direct drinking water, bottled water, and how to choose a water with potential safety hazards has become a problem.
At present, most families still use bottled water as the main choice for daily drinking.
After all, bottled water is now very popular and convenient, and people always feel that drinking bottled water can keep away from sewage.
Most of the bottled water is pure water, which is obtained by water purification. Most bottled water disinfection methods are physical disinfection, which is the most common and common disinfection method.
Most of them are heated, filtered, ultraviolet light, and the most common is sterilized by boiling.
Because this method is the most common, simple and effective, and the cost is low, but this method is only suitable for a small amount of drinking water treatment, and it is not possible to use more water. And this method can only remove the most basic bacteria.
In addition to boiling, filtration is also a frequently used method, usually using sand filtration, asbestos board filtration, etc., but this method can only remove bacteria but not achieve the effect of sterilization.
2. Is bottled water healthy?
Since the large-scale market of bottled water, many people have worried about the quality of this water and whether long-term drinking will cause harm to people's health.
In fact, relevant experts have long done research and come to conclusions.
According to experts, the air environment we live in, even if we have done sterilization and disinfection, there are still thousands of bacteria in the air.
Bottled water retains a certain amount of gas and is not in an absolute vacuum, so bacteria increase as the air in the bottled water increases.
The two show a proportional relationship, and will continue to reproduce in the barrel, and after a long time, the microbial reproduction rate in the bottled water will continue to rise, and finally the microbial index will exceed the standard.
And nowadays, most of the bottled water is placed on top of the water dispenser.
The water dispenser has the function of alternating hot and cold water, and the water storage tank inside will also breed a large number of bacteria and viruses after a long time.
In addition, if it is not cleaned for a long time, and dust accumulates, insects and moss may grow as the temperature rises.
These microorganisms enter the body with water and can cause diarrhoea or dehydration and fever.
The Center for Disease Control and Prevention of the Ministry of Health in mainland China has conducted a sample survey of bottled water across the country, and the results are astonishing: on average, almost all bottled water in the country has 75% of the bacteria exceeding the standard.
It is puzzling that bottled water should be synonymous with health and hygiene, but now there are so many bacteria that exceed the standard.
Why is the data so shocking? It actually has something to do with the bucket of water.
There are two types of buckets on the market now, one is the original production bucket, which meets the standard from production to molding.
There is also the barrel that unscrupulous merchants recycle by recycling old CDs and old medical plastics.
The appearance of this kind of barrel and the original barrel are not checked, but the cost is very low, and the huge price difference has attracted countless unscrupulous manufacturers to start eating and producing, thus polluting the water source from the source.
3. The hazards of bottled water
The shelf life of bottled water is generally around two to three months, but once opened, you need to drink it within 5 days.
After all, if it is opened for too long, bacteria in the air will grow in the water and eventually cause water pollution, so it is best to drink bottled water as soon as possible and not leave it for a long time.
Moreover, most of the bottled water has been sterilized by ozone, and some ozone residues are likely to produce some carcinogens if they exist in the water for a long time, which is not good for people's health.
And in fact, a lot of the bottled water nowadays is a small workshop, and it is difficult to trace the water source.
No one knows where the bottled water we drink comes from, and there is no way to ensure the safety of the water.
In the past, many news media reported that many bottled water was tap water used by some unscrupulous businesses.
Tap water is bottled without any filtration and sterilization, so it is impossible to secure a water source and cannot be assured of its water quality.
At the same time, according to the latest academic report, an international journal published a report that found that there are now 240,000 detectable plastic particles per liter of bottled water.
These microplastics do not have any health benefits for the human body, they may become carriers of harmful substances, adsorb and carry heavy metals and organic pollutants from the outside world into the body.
The long-term accumulation in the human body will cause serious burden and damage to various organs in the body, the most serious of which may be the digestive system and reproductive system.
These invisible microplastics in bottled water are also one of the concerns about water quality.
In addition, the bottled water is filled with treated mineral water, which can only be used to replenish water.
Because some of the minerals and nutrients contained in the water itself are filtered out during the process of treating the water, there is no way for us to get the nutrients and minerals we need from the water.
4. What are the benefits of drinking boiled water
Compared with bottled water, it is actually healthier to drink boiled water.
Boil water to drink, the water is sterilized at high temperatures, and now the tap water in our home has been professionally treated.
This tap water, also known as raw water, can be drunk with peace of mind after boiling at a high temperature and boiling to a sufficient boil.
Compared to drinking bottled water, it also contains nutrients that are not strictly filtered and lost.
These essential nutrients for the human body will not disappear even after boiling and sterilizing at high temperatures, so it is more nutritious to boil water and drink it yourself than bottled water.
And compared with bottled water, there may be much fewer bacteria in the process of boiling water and drinking it than bottled water.
After all, the bucket of bottled water is recycled, and improper disposal is likely to breed a large number of bacteria, and generally when drinking bottled water, you need to be equipped with a water dispenser.
Water dispensers are the breeding ground for bacterial growth, so even if the water is clean, it is unhygienic if the water dispenser is not clean.
Most of the boiling water is a special kettle, which is very easy to clean, and most of the time it is enough to rinse it with running water after boiling water.
Speaking of which, some people may ask, if you boil the water yourself, there will be scale in the kettle, doesn't this indicate that the water is not clean?
In fact, the generation of scale does not indicate how many impurities there are in the water, but only because the calcium and magnesium elements in the water are mixed with some substances and remain on the kettle.
This impurity can be cleaned up regularly, and there is no harm to the body.
5. Precautions when buying bottled water
Although it is said that it is healthier to boil it by yourself than bottled water, most people still choose bottled water for convenience and taste differences.
So in order to ensure your health and water quality, you should pay attention to the following aspects when buying bottled water and drinking it.
1. Choose bottled water with a reliable water source
Nowadays, the quality of bottled water is uneven, if you want to choose a bottled water drinking company with guaranteed quality, you must keep your eyes open, carefully screen and choose the best.
Generally speaking, you can ask some neighbors in the neighborhood to see where they choose to bottle water.
If possible, you can visit some of their water sources, see where the water source of these bottled water is selected, and then observe or ask how their pure water is processed.
2. Check the quality of the bucket of bottled water
There is also a certain relationship between the quality of the bucket and the quality of the water, especially those inferior buckets, even if the water quality is good, as long as it is loaded into such a bucket, it will be polluted.
Therefore, when buying bottled water, you must pay attention to the quality of the bucket, and it is best to ask the staff for a quality report to see what the main ingredients are.
3. Clean the water dispenser frequently
If the water dispenser at home is not clean, even if the bucket is good and the water quality is good, as long as the water dispenser is used, the water will still be polluted, which will affect your health.
Therefore, clean the water dispenser regularly, especially the interface, because of its unique shape and location, that place itself will accumulate a lot of dust and bacteria.
And long-term residual moisture is likely to be a breeding ground for microorganisms.
The weather is even hotter, so for your own health, you must do a good job of regular cleaning, so as to ensure the safety of the water quality.
summary
To sum up, boiled water is healthier and more hygienic than boiled water, which conflicts with our inherent beliefs.
However, boiled water and bottled water have their own advantages and disadvantages, so you should choose the best one according to your existing conditions.
Although the quality of bottled water cannot be guaranteed, it is easy to drink and has a better taste and taste.
Although boiling water is more healthy and hygienic, it is a bit troublesome, and the taste itself is unacceptable to some people. All in all, no matter what kind of water you choose to drink, you should pay attention to hygiene and water quality safety.