Yoghurt can generally be stored for 3 days at room temperature, and can be stored in the refrigerator for 12 to 18 days, but generally it should not exceed one month. Activated milk yogurt can be stored in the refrigerator for about 10 days. If it turns orange in color, foams or smells bad, it means it has spoiled and cannot be eaten.

Yoghurt making steps:

1. Pour a small amount of pure milk into the container, then pour the whole packet of yogurt starter into the container, add warm water, and stir thoroughly with a spoon or chopsticks Evenly;

2. Cover the container and put it into the yogurt machine.

3. Cover the upper cover of the yogurt machine, plug in the plug, and start the yogurt machine.

4. After the yogurt machine is finished working, condense the fermented yogurt into a "tofu curd" shape, and it can be eaten immediately when the temperature is about 40°C.