I tried to make yogurt for the first time this weekend. It did not turn out. There are so many things that could have gone wrong. First, the expired rasberry yoplait from the mini-mart was definately not an ideal starter. I was also a little distracted while I heated the milk and first let it get too hot, then while I was cooling it to add the starter, let it get too cool. I heated it up again to 120F before I added the rasberry yoplait. Whatever happen, it didn't set and is still all liquidy. I can still use it for baking, but probably only for fruity baked goods since there is the tinge of rasberry in there still. I need to find the candy thermometer again too since I'm pretty sure the instant read thermometer I used is a little off and I had to keep checking periodically.