I have a "programmable" 5 qt. Rival oval crockpot and the lid doesn't seal tightly, which I think may be defeating the purpose of it. I was under the impression that you do NOT take the top off, because that slows cooking time, so if heat is escaping the lid, isn't that making it slower?
Last night I made some round steak with broth, herbs, potatoes, onions and garlic. It heated up the kitchen, (and it was over 90 outside) and the steak just didn't get as tender as it should have, and I assure you it cooked for a very long time. I finally got a piece of heavy duty foil and put it over the crockware, and then set the lid on that. Is that right? Has anyone had an experience like that? Am I destined to keeping foil on the darn thing?