30 to 60 minutes. Sheep's offal is older and has thicker meat, which takes a long time to cook. It takes 60 minutes to cook sheep offal with ordinary gas, 40 to 50 minutes with an induction cooker, and only half an hour with a pressure cooker. Sheep offal mainly includes sheep belly, sheep liver, sheep gall bladder, sheep lungs, sheep intestines and so on. Among them, the protein content of goat belly is very high, goat liver has a high iron content, goat bile has a high lecithin content, and goat lung contains a large amount of lecithin.