I have chickens, who create quite a bit of poop I can use to grow mushrooms, but I'm not sure how to pasteurize/sanitize it. I was thinking pressure cooker?
I ordered some spore syringes and I'm not sure if i should get premade bags with injection ports or if I should make my own bags. It's the same cost to buy bags and a used instant pot, and I already have coco coir. Once I get some mushroom colonies going I was planning on keeping it going by breaking it up and mixing it with fresh substrate, but I don't want to keep buying pasteurized manure.
Fungaia's video on pressure cookers may be very helpful to you! It doesn't go over the specifics for chicken manure, but goes over pressure cookers in general and is very informative. It also goes over lots of different types (instant pot/presto canner/etc) so you can choose the scale/price range that fits your goals. And besides the PC video, there's quite a few other diy cultivation videos to watch. Hope something there might be helpful c: Good luck, and mush love!