Can your stainless steel thermos cup only be used for one winter?

The weather has been getting colder in some places in the north recently, and the mode of soaking wolfberry in a thermos cup is about to be turned on. Yesterday I received a message from a reader, saying that a thermos cup he bought last winter suddenly stopped keeping heat when he used it again recently. Please help me tell me what is going on. I understand that the reader bought it last winter and has been using it well. When the weather was hot, it was washed and put away without use. Until recently, it was taken out for use and it was no longer insulated. I analyzed the whole situation in detail and it should be caused by improper storage. If the cup leaks vacuum, how should you store the thermos cup that is not used for a long time?

Speaking of thermos cups, let’s first talk about the principle of the formation of thermos cups. The stainless steel thermos cup uses a getter to remove the air between the two layers through high-temperature pressure in a 600°C vacuum furnace. If the air is not completely evacuated, the remaining air will be absorbed by the getter, and the complete vacuuming process is finally completed. This getter is manually welded to the inside of the cup.

1. Store it properly to avoid falling from high places.

When we do not use the thermos cup for a long time, we should place the thermos cup in a place where it is not easily touched. Many times our thermos cup falls over. Although we find that the appearance of the cup has no effect, we think it can still be used after cleaning it. But in fact, sometimes it may cause the internal getter to fall off, causing the cup to leak.

2. Store dry to avoid mold

When we do not use the thermos cup for a long time, drying the thermos cup is the most basic step in storing the thermos cup. The removable accessories in the thermos cup should be disassembled one by one and cleaned separately. After cleaning, wait for them to dry before assembling them for storage. Friends who have the conditions, if we want to store the thermos cup for a long time, we can also put some bamboo charcoal bags or food desiccant in the bottle, which can not only absorb moisture but also remove the odor caused by long-term storage.

3. Accessories cannot be stored separately

Some friends must have encountered this situation. The water cup was cleaned and dried. It was not assembled and the accessories were stored separately. After taking it out after a while, you will find that the silicone sealing ring of the cup will turn yellow or become sticky. This is because the silicone sealing strip has been exposed to air for a long time, causing aging. Therefore, cups that are not used for a long time must be cleaned, dried, assembled and stored.

If there are other better storage methods, please leave a message to share.