5 ms·

FYI since many people don't know: Decaf isn't zero, it can still be several percentage points. In the US decaf is supposed to be under 3% of regular coffee but

FYI since many people don't know: Decaf isn't zero, it can still be several percentage points. In the US decaf is supposed to be under 3% of regular coffee but it's not commonly tested or enforced, so many types of decaf can be quite a bit higher. Several big cups of decaf can approach the caffeine content of one regular cup.

esperent 5mo ago
> Several big cups of decaf can approach the caffeine content of one regular cup Do you have a source for this? Because it doesn't sound right to me. And also, I live in a coffee producing company, work adjacent to the coffee industry, and had a long conversation with someone planning to set up a business exporting green beans to the US, and their beans were getting tested to an extreme degree and being rejected for a few ppm over on certain things. I have heard the 3% rule but fyi it's 1% in the EU and since there's actually not that many large scale decaffeination factories in the world, as far as I know they all target the EU level. If you buy small batch, large batch, or somewhere in between it's probably been processed in one of these few large factories.
- vikingerik 5mo ago
  Just Wikipedia. It cites two studies that found values of 8-13 mg and 3-32 mg per decaf cup, compared to regular which is 95-200. https://en.wikipedia.org/wiki/Decaffeination https://en.wikipedia.org/wiki/Decaffeination
  - esperent 5mo ago
    The linked Wikipedia "study" is this science daily article: https://www.sciencedaily.com/releases/2006/10/061012185602.htm https://www.sciencedaily.com/releases/2006/10/061012185602.h... And that article links back to this UFL press release. I've clicked every link I can find and there's not an actual, published study to be found anywhere: https://archive.news.ufl.edu/articles/2006/10/uf-experts-decaffeinated-coffee-is-not-caffeine-free.html https://archive.news.ufl.edu/articles/2006/10/uf-experts-dec... But even if there was, is a study from 20 years ago still relevant?

esperent 5mo ago

> Several big cups of decaf can approach the caffeine content of one regular cup Do you have a source for this? Because it doesn't sound right to me. And also, I live in a coffee producing company, work adjacent to the coffee industry, and had a long conversation with someone planning to set up a business exporting green beans to the US, and their beans were getting tested to an extreme degree and being rejected for a few ppm over on certain things. I have heard the 3% rule but fyi it's 1% in the EU and since there's actually not that many large scale decaffeination factories in the world, as far as I know they all target the EU level. If you buy small batch, large batch, or somewhere in between it's probably been processed in one of these few large factories.

vikingerik 5mo ago
Just Wikipedia. It cites two studies that found values of 8-13 mg and 3-32 mg per decaf cup, compared to regular which is 95-200. https://en.wikipedia.org/wiki/Decaffeination https://en.wikipedia.org/wiki/Decaffeination
- esperent 5mo ago
  The linked Wikipedia "study" is this science daily article: https://www.sciencedaily.com/releases/2006/10/061012185602.htm https://www.sciencedaily.com/releases/2006/10/061012185602.h... And that article links back to this UFL press release. I've clicked every link I can find and there's not an actual, published study to be found anywhere: https://archive.news.ufl.edu/articles/2006/10/uf-experts-decaffeinated-coffee-is-not-caffeine-free.html https://archive.news.ufl.edu/articles/2006/10/uf-experts-dec... But even if there was, is a study from 20 years ago still relevant?