Traditional Culture Encyclopedia - Traditional virtues - Why does the water in the thermos smell bad?

Why does the water in the thermos smell bad?

1, because bacteria will breed in the thermos for a long time, which will produce odor.

2. Microorganisms in water are stored in bottles, which will produce odor if not cleaned for a long time.

3, you can put some vinegar or soda to clean it up, so that it will not produce odor.