I woke up this morning thinking about hot chocolate. Cool! I'll have some with breakfast. I start making it and it smells vile and kinda rancid. The cocoa powder is not that old, so I asked J. to take a sniff. She says it smells just fine to her. I check the Green & Black's mint chocolate bar I had some of _last night_ and _it_ smells vile and kinda rancid.