I know that cooking dried beans yields better flavor than canned. Yet, I can't get the texture right. I"ve tried instant pot, and I either get crunchy beans or beans that are so overcooked they don't hold together. I'm cooking a pot of pinto beans in my crock pot now, and while they taste good they've been stewing for about 20 hours !?! and still have a bit of crunchiness going. They taste good, but the texture is just not right. What am I doing wrong?