A Cha He is otherwise known as a 'tea box' — a vessel for tea introduction. According to the Chinese tea ceremony tradition, we first look at the tea in the cha he and then 'deep face' into it. We inhale, exhale, and inhale once more, deeply through the nose. It allows for the ceremony participants to evaluate the tea that they will be drinking.
Porcelain Cha He (Tea Holder)