Umeshu (梅酒) is a Japanese liqueur made by steeping plum (ume) fruits (while still unripe and green) in liquor (焼酎, shōchū) and sugar. It has a sweet, sour taste, and an alcohol content of 10–15%. Japanese restaurants serve many different varieties of umeshu and also make cocktails. Umeshu on the Rocks (pronounced umeshu rokku), Umeshu Sour (pronounced umeshu sawa), Umeshu Tonic (with 2/3 tonic water), Umeshu Soda (with 2/3 carbonated water). It is sometimes mixed with green tea (o-cha-wari) or warm water (o-yu-wari). Umeshu can be served at different temperatures; chilled or with ice, room temperature, or even hot in the winter.