
Pour the milk in the inner pot, add yogurt or culture and mix well with a whip.
Put the inner pot in the pressure cooker, cover, select "Yogurt", put 8 to 10 hours (with the longer the time the yogurt will taste more sour).
For Instant Pot 10 in1: select medium yogurt then medium.
For other Instant pot: select normal.
Press the start button to begin the fermentation. When cooking is finished the term 'yo 9t' appears on the screen.
Refrigerate the yogurt for 6 hours directly in the bowl of the Instant Pot or in ready to serve bowls. If you prefer a thicker yogurt, simply strain it in a large sieve or strainer lined with cheesecloth for 30 to 60 minutes. Draining extracts the whey and produces a milder taste yogurt. It is normal for the yogurt to become thinner when stirred. The yogurt can be stored for 2 weeks in the refrigerator.