1. There is grease in the water, the most important thing is to avoid grease, once contaminated with grease that will lead to stinky bean sprouts, rot.

2. The water of bean sprouts should be changed once a day, and not changing the water can also lead to the odor of bean sprouts.

3. There are broken beans inside, which rot and cause the bean sprouts to stink.

4The temperature is too high, the temperature is too high to cause the bean sprouts root rot, emit rotten smell.

5. Environmental sealing, impermeable, hair bean sprouts taboo airtight.