Umeshu is a Japanese liqueur made by steeping ume plums in liquor and sugar. It has a sweet, sour taste, and an alcohol content of 10–15%. Famous brands of umeshu include Choya, Takara Shuzo and Matsuyuki. Varieties are available with whole ume fruits contained in the bottle, and some people make their own umeshu at home.
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 tonic water), and Umeshu Soda (with carbonated water) are popular. 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.
Umeshu can be made either from real plum fruit, or using additive flavours and perfumes to emulate the taste of plums. Umeshu which is made from exclusively plum fruit (without additives) will be labelled as Honkaku Umeshu and will typically be made only from ume fruit, sugar, and alcohol.