Usu
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An Usu (Japanese: 臼) is a large Japanese mortar with a pestle called kine (Japanese: 杵), used to pound rice or millet.
While the function of an usu is similar to the smaller suribachi and surikogi mortars, the shape is very different, as the usu usually lacks the rough pattern in the bowl, and has a differently shaped pestle which is used in a different manner.
[edit] Appearance
The usu is usually of a large size, with a height of about 1 meter (including pedestal) and a diameter of ca. 30cm. The usu is usually made of wood or stone. The kine is a long wooden mallet with a length exceeding 1m. The usu is usually operated by two people at the same time. One person swings the kine to pound the rice in a similar motion to chopping wood. It is physically demanding work, and is usually done by men who often chant in unison to keep time. Between each swing, another person puts his hand in the bowl to turn the rice. Timing is critical for safe operation of the usu.
[edit] Use
The most common use of an usu is to pound cooked white rice into a very sticky mass in order to produce mochi. It is still frequently used in Japan in traditional restaurants and also sometimes in traditional, rural, or wealthier private households. It is claimed that mochi pounded in an usu and kine tastes better than mochi that has been processed by an electric machine.
[edit] See also
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