Patent ID: 7858136

Claim:
A method for manufacturing pure oxygen-containing diluted soju, comprising the steps of: (1) preparing 95% ethyl alcohol; (2) diluting the ethyl alcohol with brewing water to an alcohol concentration of 40-60% to make a first dilution; (3) aging the first dilution at room temperature for 7-10 days; (4) diluting the aged solution with brewing water to an alcohol concentration of 20-36% to make a second dilution; (5) passing the second dilution through nine columns packed with activated carbon at a space velocity (SV) of 3-5 h −1 so as to deodorize and purify the dilution; (6) filtering the purified dilution through a filter, thus preparing diluted soju; (7) transferring the diluted soju of step (6) to a storage tank and then subjecting the diluted soju to a first pure oxygen injection process, in which the diluted soju is aerated with pure oxygen (99.8-99% purity) bubbles using an air stone placed in the storage tank; (8) transferring the diluted soju of step (6) to a cooler, in which it is cooled to 15-20° C., and then subjecting the cooled soju is subjected to a second pure oxygen injection process, in which pure oxygen bubbles are sprayed into the cooled soju using an air stone; (9) transferring the oxygen-injected soju of step (8) to a bottling unit, in which it is bottled; (10) subjecting the bottled soju to a third pure oxygen injection process, in which pure oxygen is sprayed directly into the uncapped bottle containing the diluted soju; and (11) transferring the bottled soju of step (10) to a capping unit, in which the bottle containing the diluted soju is sealed with a cap.