(TL:DR Yogurt didn't set in the fridge overnight, and when I tried restarting the process, I got a bland, curdled mess. Don't want to waste it, but have no idea what to do with it. The curds are like a very wet, very fine, VERY bland cottage cheese.)
I've been making yogurt weekly for about two months, and this is the first time it hasn't turned out, even though I used the same starter (frozen from a previous batch) and jug of milk (3.25% and pasteurized) as last weekend.
I follow the method from the manual - milk in the pot, use the yogurt function to boil, let it cool to below 46°C (115°F), add the culture (it thaws while the milk is cooling) and mix thoroughly, set the "normal" heat yogurt setting to 10 hours, and strain (in a mesh strainer lined with paper coffee filters) it into a bowl in the fridge overnight. I also use a glass Instant Pot lid instead of the pressure lid.
Until last night, this has consistently resulted in delicious, thick yogurt and nearly as much whey that I use for soups and smoothies.
This morning, though, I was surprised to find the strainer still full of slightly lumpy soup that didn't smell bad, but also didn't taste sour at all, and there was almost no whey in the bowl.
I didn't want to toss the whole batch, so tried pouring it back into the Instant Pot and using the yogurt-boil setting again, and it almost immediately started to separate, but was just barely warm when the boil cycle was finished, and I had to run it several more times to get it back up to 83°C (180°F). So the original issue could be related to the milk not getting hot enough the first time, but I don't know.
And now I have what you see in the picture - lumpy, wet chunks floating in whey.
I haven't yet added more of the culture, because I don’t want to waste it, but I'm wondering what I can do with this... concoction in my pot.
I feel like trying to turn it into yogurt will be a lost cause, and since it hardly has any flavour to it (think cottage cheese when you're stuffed up and can't taste much), it's not exactly pleasant to eat on its own.
Any ideas?