Can your stainless steel thermos only keep warm for one winter?

Recently, the weather in some places in the north is getting colder, and the mode of soaking wolfberry in the thermos cup is ready to be turned on.Yesterday, I received a message from a reader, saying that a thermos cup I bought last winter suddenly stopped keeping warm when I used it again recently. I asked the editor for help.

The editor learned that the reader bought it last winter and has been using it well.When the weather is hot, after washing it, it has been useless to put it up. Until recently, it was taken out and used, and it was no longer warm.The editor analyzed the whole situation in detail, and it should be that improper storage caused the cup to leak vacuum. How should the thermos cups that are not used for a long time be stored?

When it comes to thermos cups, let's first talk about the principle of thermos cups.The stainless steel vacuum flask uses a getter to remove the air in the middle of the two layers through high temperature pressure in a vacuum furnace at 600°C.Those that are not completely evacuated will absorb the remaining air through the getter, and finally complete the complete vacuuming process. This getter is manually welded to the inside of the cup.

1. Store properly and avoid falling from heights

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

2. Store dry to avoid mildew

When we do not use the thermos for a long time, drying the thermos is the most basic step in the storage of the thermos.The detachable parts in the thermos should be disassembled one by one and cleaned separately. After cleaning, wait for them to dry before assembling them for storage.At the same time, if we want to store the thermos 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 is cleaned and dried, and then not assembled, and the accessories are stored separately.After taking it out for a while, it is found that the silicone sealing ring of the cup will turn yellow or sticky.This is due to the aging of the silicone sealing strip in contact with the air for a long time.Therefore, the cups that will not be used for a long time must be cleaned, dried, assembled and stored.

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