JoshuaZ comments on Coffee: When it helps, when it hurts - Less Wrong

43 Post author: JustinShovelain 10 March 2010 06:14AM

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Comment author: JoshuaZ 26 May 2010 01:40:13AM 1 point [-]

Do you have a citation for this claim?

Comment author: ChristianKl 31 May 2010 11:57:25AM 1 point [-]

At the moment I don't find a reputable english source however, I can however elaborate the argument a bit more:

Tea contains both caffeine and theanine. Theanine relaxes the body and reduces stress while coffeine does the opposite. If you brew the tea longer than the ratio of caffeine to theanine that gets released changes.

Comment author: gwern 23 February 2012 09:48:51PM 1 point [-]

My understanding was that caffeine was dissolved almost immediately, on the first steep or two, and this was a standard recommendation for those who wish to cut down their caffeine consumption - throw out the first steep and drink the others. So the ratio could only be changing in theanine's favor, which doesn't sound like a bad thing.