The lifespan of the thermos cup and how to extend it

Cups all have a service life, no matter what material they are made of, and thermos cups are of course no exception. Cups made of different materials have different service lives. For example, the service life of plastic water cups is generally about 2 years. If Proper maintenance can last longer. Glass cups have a longer service life. As long as they are not damaged, they can be used forever. So how long is the service life of metal cups like thermos cups?、

Generally, the service life of a thermos cup is about 3 to 5 years. Of course, it does not mean that it cannot be used after this period of time, but that the thermos cup will generally become insulated after such a long time. If it is not required, If there is no other failure or damage to the thermos cup, it can be used again. Generally speaking, the service life of non-vacuum thermos cups may be shorter than that of vacuum thermos cups. This is also the difference between vacuum thermos cups and ordinary thermos cups. The difference!

When using an insulated cup, if we use it improperly, it will cause the insulated cup to rust, thereby shortening the service life of the insulated cup. Therefore, we should also pay attention to this when using the insulated cup. Do not use the insulated cup to hold some food. Even if it is not suitable for holding things, the thermos cup should be properly maintained during use to extend the service life of the thermos cup! Specifically, there are the following methods:
a. Since the cup lid and middle plug are plastic parts, do not boil them in boiling water or sterilize them in a disinfection cabinet or microwave oven, otherwise they will cause deformation.

b. When the thermos cup is not in use, remember to stand it upside down to dry, or place it in a ventilated place to dry, so that the life of the cup will be longer.

c. The thermos cup is vacuum-insulated and has good sealing properties. Bumps and falls will affect its insulation effect.

d. The thermos cup must not be filled with milk, traditional Chinese medicine, carbonated drinks, or highly irritating or corrosive objects or liquids. (a. Milk, juice, and dairy products contain protein and are easily spoiled for a long time; b. Soda and carbonated drinks will increase in pressure and are prone to spouting; c. Acidic drinks such as lemon juice and plum juice will cause poor heat preservation).

e. For a newly purchased cup, first rinse it with clean water, then clean it with a cup brush (the cup brush should be soft, such as a sponge brush, never use a hard tool to brush the stainless steel liner), and then pour 90% of the water into the cup. of hot water, cover the cup, soak it for a few hours and then pour it out, and you can use it with confidence.