The reason for heating fresh milk with insulated containers is mainly to kill mold and prevent yogurt from spoiling.
In the process of making yogurt, there are several important reasons for using sterilized containers to hold heated fresh milk:
Prevent milk from spoiling: Food spoilage is mainly caused by the growth and reproduction of microorganisms. By sterilizing the container for milk, the miscellaneous bacteria inside can be killed, thereby preventing milk from spoiling and maintaining the freshness of the milk.
Promote lactic acid bacteria fermentation: Yogurt contains lactic acid bacteria. Adding yogurt to fresh milk and keeping it warm will cause lactic acid bacteria to ferment and ferment fresh milk into yogurt. This process needs to be carried out at a suitable temperature to ensure the survival and reproduction of lactic acid bacteria.
Kill mold: Heating fresh milk can kill the mold in it, which is to ensure the quality and safety of yogurt. The growth of mold may cause yogurt to spoil, so heating and sterilization measures can effectively prevent this problem.
In addition, homemade yogurt should be refrigerated after completion, but it should not be stored for too long to maintain its best taste and quality. This process places an emphasis on hygiene and safety measures to ensure the final product is high quality and safe for consumption.
