Quite a few. China has a long history of using silverware. In ancient times, some big families used silver tea sets and tableware.

In ancient times, people knew that silver could identify poison, because ancient toxins basically contained sulfide, and silver would turn black when it touched sulfide, but this statement doesn't work now. Because toxins are too diverse now.

Modern medicine has also proved that silver has the function of purifying water quality, disinfection and sterilization, so the benefits of using cups with silver liners are still quite many.