Reader Allyson writes: "You should do a video where John Green talks about foods people can stop putting in the fridge. Maybe he can leave out foods for a few days and try them, as a test."
While I do like this idea, I'm not sure it's worth poisoning our wonderful host. But lucky for us (especially John), someone already filmed something sort of similar. Here's a quick rundown of foods you don't need to refrigerate and what happens to them when you do.