Tea Bowls THE TEA CEREMONY, "Cha no yu," meaning "hot water for tea" in Japanese and called the "tea ceremony" in English, can last three to four hours and includes the serving of thick and thin tea and a meal. A special room is designated for the tea ceremony, either part of the house or in a corner of the garden. Tea rooms range in size from approximately 12 to 20 square feet. The building materials are plain and natural, the setting is quiet, simple and tranquil. The ambience is one of harmony, reverence, purity and calm.