Large barrels of mineral water gather water beads on the outer wall of the barrel in summer

This is because the mineral water is in the storeroom or store of the merchant, in order to maintain the quality, the air conditioner is turned on to lower the temperature, and the temperature may be kept below 25 degrees, and the indoor temperature of your home is higher in summer, which may reach about 35 degrees, with a temperature difference of 10 degrees, and the hot and humid air in the room will condense into water droplets when it hits the colder barrel wall.

A new source of pollution from vat water.

Provincial Bureau of Quality Supervision in 2008 supervision and random inspection of a total of 17 cities of large barrels of water, samples are directly taken from the finished product warehouse of the production enterprise, the sampling of 75 groups of unqualified samples in 66 groups of samples microbial indicators unqualified, accounting for 88% of the number of unqualified groups.

At present, the pollution aspects of the vat water owners are as follows:

1. The manufacturer has not carried out timely and effective treatment and solution to the pollution of water sources, pipelines and equipment;

2. The environment of the disinfection and filling workshop does not meet the requirements (the current problems of most large barrel water manufacturers);

3. The quality of the packaging container is inferior, a large number of toxic substances are dissolved in the water, 4. The lid of the drinking water barrel is not tightly sealed, and there is air infiltration during the storage process, which pollutes the water in the barrel.

5. The bucket is recycled many times, and many manufacturers do not treat the bucket in place, and even some manufacturers do not do any treatment on the bucket that comes back at all, and directly fill the new bucket water.

6. The manufacturer is not strictly controlled in the individual key links of the production process, and the sterilization and disinfection are not thorough;

7. Due to the unqualified equipment, outdated equipment, and irregular production equipment of some production enterprises, the conductivity and nitrite of the vat water are unqualified, the free chlorine exceeds the standard, and the fluoride is not up to standard;

8. The barrel of water will enter a lot of air during the drinking process, because the barrel of water does not contain residual chlorine, the bacteria in the water are very easy to multiply, and the general barrel is not drunk for more than three days, and the bacterial pollution in the water will be very serious.

9. In the humid environment of the bucket water dispenser for a long time, the bacterial breeding is very serious, and a large number of bacteria will enter the faucet of the water dispenser with the flow of the bucket of water, and then enter the drinking person's cup and be drunk by the human body.

10. Large buckets of water are often stored for a long time before being given to users at the point of sale, and a large number of large buckets of water to be sold are usually placed in sunny places, resulting in a large number of residual organic matter and bacteria in the water.

Therefore, the current large barrel of water has become a new and very serious source of pollution in the lives of citizens, to a large extent, it can be said that drinking large barrels of water is not as good as drinking tap water, tap water at least has been sterilized, and tap water contains a certain amount of residual chlorine, which will not give bacteria a chance to multiply.

If the temperature of the barrel wall is not very low, the water vapor will not liquefy.

It should be that the bottle is not clean, and the surface is stained with salt that is easy to deliquescent.

Wipe the walls of the bottle.

Probably not, through a plastic bucket. It may be caused by the temperature difference between the inside and outside, and now on a hot day, the water that has just been sent is relatively cold, so there may be small droplets.

Because the temperature of the water inside the bottle is much lower than the temperature of the air outside the bottle, the air will accelerate outside the bottle to quickly balance the natural temperature between the two objects, and the air is rich in water molecules, so it will accumulate in this flow and form condensation. Doesn't your air conditioner have a drain pipe? A cold water bottle at this time is similar to a condenser in an air conditioner.

- Lonely mountain man.

Water vapor in the air condenses.

Because the mineral water has just been taken out of the refrigerator, its temperature is much lower than the indoor temperature, and the water vapor in the air meets the cold mineral water, and the physical phenomenon of liquefaction (that is, the gas becomes liquid) is produced around the mineral water, and the water vapor becomes small water droplets, which is what we see"White gas", in fact, it was a small drop of water.

Not vaporization, it's liquefaction.

Vaporization is the transformation of a liquid into a gas.

1500 ml = liters.

A large vat is equivalent to a small bottle of 18 bottles.

Because the temperature of the outer wall of the frozen mineral water bottle is much lower than the ambient air temperature, the water vapor in the air will condense into small droplets, which will adhere to the outer wall of the mineral water bottle.

If in a dry environment, the relative humidity is very low, and the partial pressure of water vapor is so low that it does not form small water droplets, then it is not visible.

Small water droplets are formed by the condensation of water vapor in the air on the outside of the bottle when it is cold.

There will be a role that plays a role in the surface tension of the liquid in the hand.

The reason for the production of water droplets in frozen mineral water is that when the water vapor in the air encounters a cold water bottle, it will change from gaseous to liquid state, and attach to the wall of the bottle to produce water droplets, so even if there is no water in it, if the mineral water bottle is still lower than the air (of course, it must be lower than the boiling point of water), then there will be water droplets, and the speed is proportional to the size of the temperature difference. The temperature of the mineral water bottle is equal to or close to the air temperature outside, so there will be no water droplets.

Mineral water bottles and cans are not worth a glass jar I just sold a few days ago a bunch is not worth it when I go up and down the stairs It used to be more than a dime I thought I was deceived by the old man Later, I heard that it was like this now, and now it is almost 5 times cheaper.

It's okay, you can try it.