The vacuum flask is convenient and practical, but it takes a long time to use, and it will inevitably produce some odor in the cup, which makes people feel uncomfortable. You may wish to try the method provided by Ms. Wang of Tianyuan Community in Luolong District, which can effectively remove the odor in the thermos cup.

Coup:

1. Baking soda to odor: pour hot water into the mug, then add baking soda and shake it several times, then put it down for a few minutes and then pour off the water, the odor and scale are all removed.

2. Toothpaste to odor: Toothpaste can not only remove bad breath and clean teeth, but also remove the odor in the thermos cup. Wash the cup with toothpaste and the odor disappears immediately.

3. Brine to odor: use warm water and salt to make a light salt water, pour into a thermos cup and shake it for a while, then pour it off, then rinse with water.

4. Boiled to odor: Put the cup into tea and boil for 5 minutes, then rinse with water and let it dry, and the odor disappears.

5. Milk to odor: Pour half a cup of warm water into the vacuum flask, then pour a few spoonfuls of milk, shake it a few times, then put it down for a few minutes, then rinse it off with water to remove the odor.

6. Orange peel to smell: first clean the cup with detergent, then put the fresh orange peel into the cup, tighten the lid for about four hours, and finally clean the cup. Orange peel can also be replaced with lemon peel, the method is the same.