Изолированные чашки, seemingly ordinary daily necessities, may also pose health risks if the material is not chosen correctly
Какой термос нельзя использовать
Insulated cups cannot use 201 материал
201 нержавеющая сталь не является пищевым материалом, but an industrial product material, mostly used for making decorative tubes, промышленные трубы, и ремешки для часов. 201 нержавеющая сталь имеет высокое содержание марганца и плохую коррозионную стойкость.. Если он используется в качестве внутреннего вкладыша чашки термоса, long-term storage of beverages can lead to the precipitation of manganese elements, and hot water may directly become “toxic water”. Металлический марганец является важным микроэлементом для организма человека., но чрезмерное потребление марганца может нанести вред организму, особенно нервная система.
It is recommended to use 304 и 316 stainless steel materials. The most important elements in 304 stainless steel are nickel and chromium, which have good processing and corrosion resistance properties. The manganese content is less than 2%, and it is recognized as a food grade stainless steel by the country.
To choose a thermos cup, you can follow the following four steps.
1. Check the label identification
Do you have the product name, producer name, адрес, contact information, and production date;
The material of the parts in contact with food, например, нержавеющая сталь, should be checked for the presence of “304” и “316” steel seal markings at the bottom; Пластик, резина, and other components that come into contact with food, such as straws, lids, и т. д., should also be labeled with plastic or other materials.
2. Smell for any unusual odors
A high-quality insulated cup should have no abnormal odor or a slight odor that is easy to dissipate. If the smell is strong and persistent after opening the cup lid, it indicates that there is a risk of use of the product. It should be avoided and returned or exchanged in a timely manner.
3. Check the overall appearance
Check whether the surface of the insulated cup has uniform color, трещины, and gaps; Whether the printed text and patterns are clear and complete; The coating should not crack or peel off, and the welded parts should be smooth, without pores, трещины, or burrs.
4. Measure insulation performance
Inject boiling water, затянуть крышку чашки, and hold it for 2-3 минуты. If there is no significant temperature increase, it indicates that the product has good insulation performance;
After filling the cup with water, tighten the lid and invert it for a few minutes and weeks. Если нет утечки, it proves that the sealing performance is good.
Remind more
Do not use a thermos to hold hot milk. If heated milk is placed in a thermos, prolonged warmth can easily promote microbial growth and lead to spoilage. Drinking milk that has been stored in a thermos for a long time can affect its taste, and in severe cases, it may lead to food poisoning.
