hello- i have arrived at this website because i am having trouble with tofu recently! i have been a vegetarian for 10 years now and i have cooked with tofu for at least that long. HOWEVER, recently when i cook with tofu it seems that it is rancid. i usually fry it in the same oil as always, but sometimes it smells bad (so bad that i have to compost it!) any suggestions on why this is happening??? please help!