Oxidation

Oxidation refers to the phenomenon in which a substance combines with oxygen. In sake, the progress of oxidation can sometimes have an adverse effect on flavor and aroma compounds. Specifically, when oxygen in the air comes into contact with sake, the flavor may change or unpleasant aromas may develop. For this reason, it is important to avoid contact with oxygen when storing and handling sake. Oxidation is a natural process, and its progress is influenced by temperature and light, so appropriate management is necessary.