About two months ago I smoked 4 different blocks of cheese & 2 1/4 lb. Sticks of butter. Smoked foe about 4 hours no heat. Once I took it out of the smoker the cheese smelled like a dirty ashtray. I wraped each block in Saran wrap including the butter. After several weeks tried the cheese and it tastes like a dirty ashtray. I guess what I am asking is what did I do wrong or what am I suposed to be looking for?