Questions tagged [caffeine]

Caffeine is a stimulant drug with a bitter taste. It is produced naturally by coffee plants. It can survive the heat of roasting and is water-soluble, so brewed coffee will contain caffeine. Use this tag for questions relating to caffeine content.

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Does hydration level change the effect of caffeine?

Apologies if this question does not belong here, it may be suit for the chemistry site, but it pertains to the consumption of coffee directly -> so here it is. Does your prior level of hydration ...
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Caffeine content of different brewing methods

For a given type of bean, do different brewing processes and temperatures (drip, French press, Mocha, espresso, cold brew, etc.) produce coffee with different caffeine content? It would seem ...
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Aeropress: does filling it full with water increase the caffeine content of my cup?

How does the amount of water I pour into an Aeroporess impact the caffeine content of my cup of coffee? If I make two cups, for cup A I use just enough water so that the 1 is covered on the ...
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Would method of ingesting coffee affect its effectiveness in terms of caffeine extraction to the body?

I have some instant coffee powder packs that include coffee, milk, and sugar in a single packet. Lately, due to circumstances related to limited time and availability of electricity, I've been ...