Will yellow rice wine be sour in 15 degrees? Why?

Yellow rice wine is a fermented wine with rice or glutinous rice as raw materials. After fermentation, it is not distilled by large brewing equipment, and it is easy to turn sour if it is stored improperly. Choose a cool and dry place. Generally, it should be stored in a warehouse with a temperature of about 20℃, stable change, suitable dryness and humidity and good ventilation. 15 degree will not be sour.