> Do not eat any of the neat jelly cubes, no matter how nice they look. They're incredibly sweet and probably addictive; if you eat them all you won't have any left for the experiment.
I've heard of using the raw jelly (jell-o for the U.S.) blocks as an emergency food whilst hiking etc. It has a very long shelf life, is cheap and you're unlikely to want to eat it unless it's an emergency whereas a bar of chocolate might be eaten before you've finished putting your boots on.