Method One:Yogurt makermakes authentic yogurt:

Milk ingredients: Freshmilk.Old yogurt

Procedure: 1. I chose two well-known brands of old yogurt for the experiment.

2. Heat the fresh milk to around 40 degrees, it should feel slightly warm to the touch. If unsure, use a thermometer.

3. Pour the heated fresh milk into a clean container that has been sterilized with boiling water.

4. Add two tablespoons of purchased old yogurt.Mix well.

5. Cover the container.

6. Place it in the yogurt maker for 8 to 10 hours.

7. Here's the result, it looks great.

Next page: Method TwoOvenMake yogurt