Heat milk to 181℉, remove from heat and wait for temperature to drop to 112-118℉.
When your milk has dropped to required temp, add the yogurt.
Now it is time to incubate the yogurt, wrap in a towel and set into and oven that is still warm from making something. If using the Instapot select the amount of time for incubation and close the lid.
Yogurt will set up in 3-4 hours and you can call it done anytime after its set. The longer you allow it to incubate the more tart it will be.
The more often you use your own homemade yogurt as a culture the more tart your yogurt will be because the cultures become more active and numerous.
We like a thick yogurt so we strain some from whey our warm yogurt through a cheese cloth before refrigerating it.
