1. Prepare materials
2. Pour milk in the container.
3. Then pour in old yogurt (or other plain yogurt), add sugar and stir evenly
4. My weapon is to put the "radiator" on the radiator after a night of fermentation, and just drink it in the morning.
Tips:There is no trouble, effort, money and money! Every family in the north is heated, saving money for buying a yogurt machine, leaving a little yogurt every time you drink, and making the next "germ", does it save money for fungus powder? Drink it unscrupulously this winter!
