The Silica Gel Mystery explores whether or not you can safely eat silica gel:
I became so intrigued by these little packets which seem to have more “DO NOT EAT” warnings on them than, for instance, rat poison or antifreeze, that I actually decided to do some research into the matter. I wanted to know why it is so imperative that we not eat this stuff. I mean, it doesn’t actually look like a life-threatening biohazard. […]
Published at 10:05 am on November 4th, 2002.