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1. After buying a thermos cup, read the manual first. There will be instructions on it, but many people don't read them, so many people can't use it correctly, and the thermal insulation effect is not good. Open the lid of the thermos. There is also a plastic bottle stopper inside. This is the key to sealing and keeping warm. First add some cold water and rinse it, then press the button to let the water run out of the cork. This will clear out some of the dust inside.
2. Some vacuum cups may contain polishing powder, so, after the first cleaning, but also with warm water to add a moderate amount of neutral detergent to clean, washed, and then rinse with water.
3. As you can see, there is a rubber ring inside the lid similar to a bottle stopper, which can be removed. If it tastes good, you can soak it in warm water for a period of time. Remember: don't cook in a pan. There is a sealing silicone ring inside, it is recommended to remove it and clean it well, generally there is very thick dust on it.
4. Do not use hard objects to wipe the surface of the thermos, which will damage the screen printing or transfer printing. Can't soak the cleaning. Add a small amount of boiling water first, then pour it away and then add boiling water for better insulation effect. Add ice water and you can still keep the original cold effect within 12 hours. Plastic parts and silicone ring can not be boiled hot.
5. The above are just some necessary operations before use. Thermos can be used to keep warm or to keep cold. If you want to keep it cold, add some ice cubes to make it even better.
