Aroma cup is use in tea ceremony.
This set comes in three pieces.
1) aroma cup
2) tea cup
3) bamboo base
Tea master usually pour the tea in the aroma cup first and cover the aroma cup with the tea cup.
When the tea master flips the aroma cup upside down, the tea soup stays in the tasting cup. Guests are ready to smell the beautiful scent in the aroma cup first, then take a sip of the tea.