Can vacuum insulated lunch boxes keep fresh in hot weather?

I believe many people have used bento. The food in a lunch box made by a couple is called a love lunch box, but sometimes the weather problem or not eating it in time will cause the food inside to get cold and make the food cold. At this time, many people will think of insulated lunch boxes. Can vacuum insulated lunch boxes keep fresh in hot weather?

Can vacuum insulated lunch boxes keep fresh in hot weather? Vacuum insulated lunch boxes can keep fresh in hot weather, but not for too long.

First, salt, soy sauce, hot soup, etc. It is not suitable for long-term storage, because these foods contain a lot of electrolytes. If stored for a long time, stainless steel will react electrochemically with these electrolytes like other metals, resulting in the precipitation of harmful metal elements.

Second, do not use strong alkaline or oxidizing chemicals such as baking soda, bleaching powder and sodium hypochlorite to clean stainless steel tableware. Because these substances are electrolytes, they will react chemically with stainless steel, thus producing substances harmful to human body.

Third, you can't use stainless steel utensils to fry Chinese medicine. Because traditional Chinese medicine contains many alkaloids, organic acids and other components, especially under heating conditions, it is difficult to avoid not reacting with them, which will make the medicine ineffective and even produce some more toxic compounds.

Fourth, do not store strongly acidic foods (such as fruits and vegetables, soybeans, potatoes, etc.) for a long time to prevent the dissolution of metal elements such as chromium and nickel.

Warm reminder: When using the insulated lunch box 1 for cooking, please take off the top cover of the matching sub-lunch box for better heating effect.

2 When steaming eggs, in order to peel the eggshell conveniently and avoid the eggshell from cracking, before steaming eggs, tap the top of the big egg head with a needle at the bottom of the cup, punch 1 hole, and then put the big egg head up on the steaming rack.

After the food is steamed, it will stay in the body and naturally cool for a while, and the taste will be better.