In many episodes of Star Trek TOS, Kirk is seen either drinking coffee or being served coffee by one of his yeomen. With all that is known about Kirk in Memory Alpha and other canonical sources, it seems strange to me that I do not know what kind of coffee he drinks. After all, Captain Picard is known to specifically drink Earl Grey tea. Does Kirk have a known caffeine preference? Is it possible that it depends on which yeoman is serving him? This would make some sense, as his behavior on the bridge can range from the very animated to the slightly sleepy.

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    One thing's for certain - it wasn't raktajino.
    – Iszi
    Commented Nov 5, 2012 at 22:41
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    I don't think there was ever a canon mention of decaf and Captain Kirk in the same sentence. If anything Kirk doesn't pussy-foot around with decaf, he's probably expresso or nothing. Commented Nov 5, 2012 at 23:33
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    I can't make this an answer, since there is little evidence... but I think he liked his coffee at least 80 proof.
    – John O
    Commented Nov 6, 2012 at 3:40
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    To be honest, this question made me smile. :) I immediately had two cameos/jokes in my mind: old and fat/slow Kirk in The Simpsons and the keyed up Kirk from Family Guy... there could really be some connection to the coffee (even if not intentional).
    – Mario
    Commented Nov 6, 2012 at 12:33
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    Honestly...it's possible ALL coffee that is replicated in the Star Trek universe is decaf - if Synthehol can't make you drunk, why should Shythecoffee give you a buzz?
    – Zibbobz
    Commented Apr 10, 2014 at 18:31

1 Answer 1


In the Trek novel Enterprise: The First Adventure a bleary-eyed Kirk snaps at Yeoman Rand before heading for the synthesizer to get the day's first coffee. The coffee tasted awful but Kirk drank it anyway and then woke up sufficiently to realize he'd been rude to Rand and apologized. No one drinks bad coffee first thing in the morning unless it has caffeine in it, so I'd say that Kirk drinks caffeinated coffee.

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    I disagree. No one lets more than 4 minutes pass between being rude to Rand and apologizing.
    – Jeff
    Commented Nov 11, 2012 at 4:48

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