Note: These amounts are general guidelines. You can literally just throw in a bunch of bones, cover them with water and set the instant pot to pressure cooking and get some great bone broth. I've found a cook time of 4 hours yields best results, but 1-2 hours will still extract some of the nutrients. You can also recook the bones several times to make multiple batches from the same bones. I usually cook a batch of bones at least 2-3 times and have cooked large batches of bones up to 4-5 times and still gotten broth out of them. It's such a cost-effective way to use leftover bones from your meals! Just keep making batches until you can't get anything else out of the bones. You'll get your money's worth!