Author Topic: Caffeine in a coffee stout  (Read 592 times)

Offline RC

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Re: Caffeine in a coffee stout
« Reply #15 on: March 17, 2021, 06:20:28 PM »


As a side note, caffeine is made by some plants that you might not expect: citrus plants, for instance, produce small amounts of caffeine in their flowers. It has been shown to improve the memories of the bee pollinators. None of it ends up in the fruit, though. And the common garden bush Camellia sinensis has long been known to produce it.
Camellia sinensis is the tea plant. I don't know if I'd call it a common garden bush (although I do have one myself).

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It's very common in planted landscapes in Northern CA, where I'm at. Not so much in peoples' backyards, but office buildings, school campuses, etc.

Offline majorvices

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Re: Caffeine in a coffee stout
« Reply #16 on: March 17, 2021, 06:38:17 PM »
This is my bad - I could have SWORN I read Guinness coffee stout in this reply

Guys, how do you think does Guinness stout has caffeine? As I know it hasn't, but my friend says that it has...

I mean, I didn't even know Guinness had a coffee stout ... but I did a search and sure enough there it was. It's possible I didn;t have enough caffeine myself when responding to this. Apologies.