Basically 1: 10 is enough. It's simple. Just put away some yogurt made last time, but it's best not to exceed 3 days, because the activity of lactic acid bacteria will decrease after 3 days. Of course, you can also choose probiotic powder. Adding sugar to taste before cooking can also shorten the heating time. It only takes about 5 hours to heat in summer! If you want to lose weight, you need to choose skim milk or milk powder, and try to put as little sugar as possible (the taste without sugar is a bit difficult to swallow, too sour). You can also add some fermented fruit particles, such as bananas, peaches, strawberries and apples, and continue to passivate them in the refrigerator for 6 hours. , especially bananas, can greatly increase the flavor concentration of yogurt, kill two birds with one stone! But it should be noted that it is best not to drink yogurt on an empty stomach, which will stimulate the gastric mucosa.
Finally, I wish you more and more beautiful!