304 stainless steel and 316 stainless steel are commonly used in thermos bottle. The nature of 304 stainless steel and 316 stainless steel is not much different. All belong to American standard austenitic stainless steel.
The insulated lunch box can reduce the food in the box and the outside of the food, and try to maintain its original temperature; in addition, the insulated lunch box has better sealing, can also avoid contact with the air, reducing the chance of deterioration.
What should I pay attention to when using a heat preservation bucket? To prevent food spoilage, the food that is eaten at noon that day is best done in the morning, and the temperature of the prepared meals is lowered and then put into the heat preservation bucket. If the unit has a refrigerator, the food is best kept in the refrigerator. refrigeration.
There are three ways of heat transfer: hot radiation, hot convection, and heat conduction. Under the illumination of the sun, people will feel the heat of the body. This is because the heat of the sun has hit us. This is called hot radiation. The best way to prevent heat radiation is to block it back. The
It used to be milk in a thermos cup. After a long time, drinking it will cause diarrhea. I believe many people didn't know it before. In fact, many parents will also make such mistakes, using a mug to bring hot milk to the school. Parents will pay more attention in the future, in fact, in addition to milk, the following four kinds of water can not be used in insulated cups!