If you don't want to use disposable chopsticks in a restaurant, how can you explain it to customers?

Suppose it advocates environmental protection, so we don't use disposable chopsticks, but we don't need disposable chopsticks either. You must ensure that your chopsticks are sanitary and disinfected, so that people can rest assured when they eat. And there is no need to explain, just put a slogan on the hotel wall. "Advocate environmental protection and put an end to disposable chopsticks"