Push yogurt button until the screen reads "boil." (This will take about an hour)
Once the Instant Pot beeps that the boil cycle is complete, carefully remove the lid and test the temperature. It should be around 180 degrees. Let inner pot sit in instant pot for 5 minutes and then remove inner pot.
Allow the milk to cool to 105-115 degrees. This will take about an hour on the counter top or about 15 minutes if you place your inner pot into an ice bath.
Gently skim off the "skin" on the yogurt and discard.
Whisk in the prepared yogurt.
Place inner pot back in the Instant Pot, close the lid and press yogurt button again and then adjust until screen reads 8:00.
Once yogurt beeps that it is complete, store in glass jars.