Theine and caffeine

September 30, 2012 at 21:23

Many times I’ve been involved in this discussion: are theine and caffeine the same? The answer is yes. And that’s also true for guaranine and mateine. The difference in names is due to the different source (tea bush, coffee bean, etc.).

Caffeine is safe for humans, but what I didn’t know and I discovered reading the Wikipedia entry for caffeine is that is toxic to many animal species and can be used as a natural pesticide.

NASA have used spider-web patters to determine toxicity, below is one picture published in 1975.

I’m not a heavy tea drinker, but if caffeine affects spiders in that way I’m afraid of the source code I write 🙂