Homemade yogurt powder

One of the happy little things in the dormitory? My homework

The main flora of yogurt: Streptococcus thermophilus, Lactobacillus bulgaricus , I later bought this 10-bacteria one and it felt pretty good.

Yoghurt machine: Taobao, with a capacity of 250ml, which is just right for one person. Thoughts on the milk powder version:

When I bought the yogurt, the customer service said not to use milk powder. I don’t believe in evil, and then I saw it on Baidu. I tried the one made with milk powder.

① It was not successful at first because I put too much bacterial powder. 1000ml was paired with one gram of bacterial powder. I poured a whole gram in (250ml cup). The resulting yogurt was very sour and very thin. .

② The second time I put half of it (because I couldn’t control the amount and couldn’t divide it into a quarter), and clamped the remaining bacteria powder with a clip and put it away. The effect was okay, better than before. .

③Can the remaining bacteria powder be used? I searched again on Baidu, and it said that it would be better to use it all at once. I thought it was a bit wasteful. I had opened the bacteria powder for two or three days, and then I thought about whether it could be successful. The final answer was that it could be done. I don’t know why it’s okay, and I don’t know what the harm is. I hope someone can tell me, are you afraid of death? The last two pictures were taken after I almost finished drinking them. They are a bit like tofu curd. I’m used to the taste. Without sugar, it’s okay. Sour.