The rice cooker is a very convenient household appliance that can cook all kinds of food, including yogurt. However, many people find it unsuccessful to make yogurt with rice cooker, the following are the possible reasons:

1. Wrong temperature: the production of yogurt needs to maintain a certain constant temperature, and the temperature of the rice cooker may not be stable enough, or it may be too high or too low, which will affect the quality of yogurt.

2. Not enough persistence: Yogurt needs to persist for a certain amount of time to ferment, usually 6 to 12 hours, while some people may be too eager to turn on the rice cooker too early, resulting in the yogurt not being fully ripe.

3. Improper ingredients: Yogurt production requires yogurt bacteria as a fermenter, while some people may use inappropriate yogurt bacteria, or use expired yogurt as a fermenter, resulting in a decline in the quality of yogurt.

4. Not dealing with the environment in time: the environment for making yogurt is also very important, and it needs to be kept clean, hygienic and ventilated, or else it may be affected by bacteria, leading to a decline in the quality of yogurt.

5. Incorrect operation: Making yogurt requires some experience and skills, such as needing to stir at the right time, adding the right amount of sugar or other flavorings, etc. Some people may not operate correctly, leading to a decline in the quality of yogurt.

In short, to make high-quality yogurt, you need to pay attention to the above problems and keep patience and care during the process. At the same time, you can learn more about yogurt making before making it to improve the success rate.