Weirdest (and Most Poisonous) Food Colorings from Antiquity

The next time you see a Ghostbusters wedding cake, stop and wonder just how they got the radioactive green coloring for the ectoplasmic slime. It's worth asking — because history is full of really icky substances being used for food colorings. You probably know already about the beetle that is still crushed to make red … » 9/21/12 10:30am 9/21/12 10:30am