To solve the problem of Japanese Sake (rice wine) prepared by ultrasonic fractionation to increase the alcoholic concentration of the Sake comprising the lot-to-lot variation in the taste and the failure in getting Sake having almost uniform taste.
A mist collector 2 is connected to an ultrasonic fractional distillation column 1, the 1st liquid collected by the mist collector 2 is stored in the 1st tank 3 furnished with the 1st measuring instrument 4 for measuring the properties of the 1st liquid, the 2nd measuring instrument 6 to measure the properties of the 2nd liquid remaining in the ultrasonic fractional distillation column 1 is attached to the 2nd tank 5, the output data of the 1st and the 2nd instruments 4, 6 are inputted into a controller 7, the 1st valve 8 to discharge the 1st liquid collected in the 1st tank 3 is connected to the 1st tank 3 through a pipe, the 2nd valve 9 to discharge the 2nd liquid in the 2nd tank 5 is connected to the 2nd tank 5 through a pipe, and the 1st and 2nd valves 8, 9 are connected to a mixer 10 through pipes.
MATSUURA KAZUO
SATO MASANORI
ITO KENJI
