In the hot summer, especially those days when the heat is unbearable, I believe many friends will bring a glass of ice water when they go out, which can have a cooling effect at any time. Is it true that many friends have a habit of pouring water into a plastic water cup and putting it directly? How about freezing it in the refrigerator freezer? Because everyone knows about drinking water hygiene issues, many friends pour hot or warm water into plastic water cups and immediately put them in the freezer. In particular, some friends want to save trouble and fill the water cups as much as possible. It is thought that the capacity to freeze into ice will be greater and the use time will be longer when it is used, but this approach is wrong.
First of all, no matter what kind of material the plastic water cup is made of, it has a temperature difference resistance limit. Some plastic materials have a temperature difference resistance limit that is not high. Once it exceeds its limit, the cup body will explode and crack. If it is slight, it can be used for a while. If it is serious, it can be used for a while. It can no longer be used.
Secondly, I believe most of my friends know that water will expand and contract with heat and cold under certain temperature conditions. The material of the plastic water cup itself has a certain degree of ductility. When the water level in the water cup is too full, the process from water to ice will occur through freezing. However, due to the ductility of plastic materials, friends who have done this have found that the water cup is deformed, and after the water is completely melted and used cleanly, the deformed water cup will not return to normal. state, this is irreversible damage.
Finally, let’s talk about the issue of cleaning plastic water cups. Since plastic water cups can carry a lot of ice drinks, these ice drinks include carbonated drinks, dairy drinks, milk tea drinks, etc. Many friends cannot clean them thoroughly after use. This is mainly because Due to personal preferences, the water cup is too large and high, and the cleaning utensils are not satisfactory, etc., then the parts that are not cleaned are very likely to become moldy in summer. Frequent use of such water cups for drinking water will cause frequent diarrhea.
Let me give you a suggestion. When you find that you cannot put your hands completely into the cup and do not have suitable tools for cleaning, fill the water cup with one-third of the water level, then tighten the cup lid and shake vigorously up and down. Using it for about 3 minutes and repeating it 2-3 times can usually clean the water cup. It would be better if you can have some practical detergent or edible salt when cleaning.
Post time: Dec-23-2023