Chopsticks are put in the chopsticks cage. Why is the bottom of chopsticks black?

If you buy it again, you should always put it together. The reason for blackening must be damp, moldy and bacterial growth.

Chopsticks are always used to being washed and put in directly, and there will inevitably be water on them, because the place where chopsticks stick together is difficult to evaporate because of the small space below, and the exposed water will evaporate quickly. Now you know why.

I'll give you a solution: you should still have a chopsticks cage with good air permeability, put it in the vent, shake it twice every time you put it in, turn it over every time you take chopsticks, and take it out regularly to clean the chopsticks cage, because not every chopstick will be used every day.