1. After buying a vacuum flask, read the manual first. Generally, there will be instructions on it, but many people don't read it, so many people can't use it correctly, and the insulation effect is not good. Open the lid of the thermos cup, there is also a lid like a plastic water bottle stopper inside. This is mainly for sealing and the key to heat preservation. First add some cold water to rinse, then press the button to let the water flow out of the cork. This will clear some of the dust inside.

2. Some thermos cups may contain polishing powder, so after the first cleaning, use warm water and an appropriate amount of neutral detergent to clean it, and then rinse with water after washing.

3. As you can see, there is a rubber ring inside the cup lid similar to a bottle stopper, which can be removed. If it smells, you can use it alone to soak it in warm water for a period of time. (Remember: you can't cook it in a pot); there is a water-sealing silicone ring inside, it is recommended to take it out and clean it, usually there is a thick dust on it.

4. Do not use hard objects to wipe the surface of the vacuum flask that will damage the silk screen or transfer on the surface. Can not be soaked for cleaning. When using, put a small amount of boiling water and then pour it out and then put it in the boiling water to keep the effect better. Putting in ice water can still maintain the original ice-cold effect within 12 hours. Plastic parts and silicone rings cannot be scalded with boiling water.

5. The above are just some necessary operations before use. The thermos cup can keep warm or keep cold. If you keep it cold, you can add some ice cubes for better results.

What to pay attention to when cleaning the thermos cup

1. The stainless steel vacuum flask must be cleaned carefully, and detergent, salt, etc. cannot be used for cleaning. Because the inner container of the vacuum flask is sandblasted and electrolyzed, the inner container after electrolysis can avoid the physical reaction of water and stainless steel in direct contact. Both salt and detergent can damage it.

2. Do not use hard objects to wipe the surface which will damage the silk screen or transfer. Can not be soaked for cleaning. When using, put a small amount of boiling water and then pour it out and then put it in the boiling water to keep the effect better. Putting in ice water can still maintain the original ice-cold effect within 12 hours. Plastic parts and silicone rings cannot be scalded with boiling water.

Precautions for the use of vacuum flask

1. Use a small amount of boiling water (or ice water) to preheat or pre-cool for 1 minute before use, the effect of heat preservation and cold preservation will be better.

2. After filling the bottle with hot or cold water, be sure to close the bottle plug tightly to avoid scalds caused by water leakage.

3. If there is excessive hot water or cold water, there will be water leakage. Please refer to the water volume location diagram in the manual.

4. Do not place it near the fire source to avoid deformation.

5. Do not place it in the reach of children, and be careful not to let children play, as there is a danger of burns.

6. When putting hot drinks in the cup, please be careful of burns.

7. Do not put the following beverages: dry ice, carbonated drinks, salty liquids, milk, milk beverages, etc.

8. Do not put the goods in the dishwasher, dryer, or microwave oven.

9. Avoid falling of the thermos cup and huge impact, so as to avoid the surface dent and cause the malfunction such as poor insulation.