tea ceremony

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of various East Asian rituals in which tea is prepared, served, and drunk, especially chanoyu.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A detailed ritual in Japan for preparing, serving and drinking green tea, seen as an expression of Zen Buddhism; also any similar ritual performed in other Asian cultures.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an ancient ritual for preparing and serving and drinking tea