Problem to be solved: to provide a Mochi noodle which can be used to adjust the temperature of Mochi rice by inserting water or hot water into the inside of the hollow.Solution: the surface of the main body 20 of the main body 20 is formed of a metal body 20 having a hollow portion, and a bottom surface 25 of the main body of the main body side face 24 which extends downward from the peripheral edge of the rice cake part 21, and a bottom portion 25 of the main body side face 24 which is recessed from the circumference of the rice cake part 21, and the water or the body of the body Water supply and drain ports 30 and 31 for taking in and out of water, and a leg portion 40 for supporting the body portion 20 at a predetermined height.Diagram【課題】中空の内部に水又はお湯を入れることで、積極的に餅米の温度を調整し、気温が低いときに不慣れな者が餅つきをしても、餅米が冷めることがなく、上手に餅つきをすることができる餅つき用臼を提供する。【解決手段】表面が椀型に凹んだ餅つき部21、前記餅つき部21の周縁から下方向に延びる筒状の本体側面部24、及び前記本体側面部24の下側の開口を閉じる本体底面部25とを備え、金属製かつ内部が中空の本体部20と、前記本体部20に水又はお湯を出し入れするための給排水口30,31と、前記本体部20を所定の高さで支持する脚部40と、を備える。【選択図】図1