I recently bought an Instant Pot and am curious about its much-touted yogurt-making capabilities. From this video it looks simple enough. What the video doesn't address, though, is the question of sterilization. Do I need to sterilize the yogurt jars, as though I were making jam? My guess is no, since you can also make yogurt in the steel liner, which isn't sterile, but it seems prudent to make sure.