Was it butter or margirine? Because margirine is one moleclue away from being plastic, and yet people eat it every day. We took a tub of margirine and placed it with the lid off in the sun here in the summer here in Tennessee. Not one fly, bug or anything would land on it or eat it. Makes ya wonder. But back to the taste thing, I think you might just be having a change in your taste buds. That happens about every six months. Good luck. Oh and if you don't make it can you will your Jeep to me?