Is the caffeine in coffee more effective when the coffee is hot rather than cold?
by 
MRSHINYSHOES
ANSWERS: 4
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only if you are pouring it on a mugger
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I think hot is more effective than cold. I don't drink coffee that much so I can't really tell, but that's what I've heard.
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My guess is that hot is more effective, since it would probably be more quickly absorbed via the digestive tract.
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Actually, I would tend to think neither. If the coffee is too hot, the caffeine is probably burned up a lot more quickly by the heat, however if it's too cold the body can't absorb it quickly enough. I'm guessing sort of lukewarm.
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