How to get rid of the tea smell in the water cup?

1, you can put the cup in hot water, you can add some tea leaves to the water, wash it with cold water or salt water after cooking.

2. First, clean the thermos cup. Pour the prepared salt water into the cup, screw on the lid and shake it a few times, or use lemonade to remove the odor. First, clean the thermos with detergent, then pour lemonade into the thermos and let it stand for a while.