A ceramic teacup filled with hot green tea. A teacup without a handle is a common teacup design used in Japan. One design advantage of a teacup without a handle is that it requires that the drinker touch the ceramic holding the hot tea. This can help a tea drinker identify when the tea reaches the preferred temperature for drinking. That said, a person drinking tea from a teacup with a handle can also touch the side of the teacup. That step, however, can be easily forgotten when a handle is available.