I have a pressure cooker not a crock pot and my recipe calls for low heat for 6-8 hrs in a crock pot. When I choose slow cook on the pressure cooker it's options are 4 hrs, next level is 6hrs and the last is 12hrs. I can adjust the time to 7 but I don't know if I should choose low or medium heat. I just want to make sure it's not going to burn.