There is no problem with normal temperature storage. Please drink before the expiration date. Store in the refrigerator and consume within a week. ----------------------------------------- Amazake may turn brown or yellow, but there is no problem with discoloration due to the chemical reaction between sugar and amino acids in amazake. This is called the Maillard reaction. The Maillard reaction can also occur in amazake that has not been opened. In addition, it is more likely to occur when the temperature is high, and it can occur even when the temperature is low, but it is especially likely to occur if it has been in the refrigerator for a long time. The Maillard reaction does not affect nutrition or flavor. However, if there is a change in odor or taste, please do not drink. ----------------------------------------- If you put your mouth directly into the amazake bottle or bottle and drink it, bacteria will grow from there. Please pour into a glass every time you drink something other than the drinking size.