this post was submitted on 15 Sep 2026
41 points (95.6% liked)
Coffee
11085 readers
41 users here now
☕ - The hot beverage that powers the world!
Coffee gadgets - It's always great to learn about new gadgets. Please share your favorite hardware or full setups. It might inspire newcomers to experiment!
Local businesses - Please promote your local businesses. If you are not the owner of the business you are promoting, kindly ask the owner if it's okay. It would be great if the business has a physical store to include an exterior or interior shot.
founded 3 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
The caffeine difference due to roast levels is mostly disproven afaik. Roasting destroys caffeine but light roasts are more heavy so if you brew by weight, that equals out. Also, caffeine content tends to vary a lot by variety and type. Robusta beans have a lot more caffeine than arabica. So if you drink a traditional italian dark roast espresso, that still can have more espresso than a light roast specialty espresso. James hoffman made a video once about that where he ordered different espressos at different coffee shops, both specialty and traditional chains, and tested the caffeine levels and they were all over the place
huh! I've been perpetuating that idea. I found James on youtube but can't find that specific video. Could I trouble you for a link?
in the meantime this other one from him seems relevant enough: https://www.youtube.com/watch?v=etnMr8oUSDo
i can only find this short: https://youtube.com/shorts/_HvsxuM7ljs?is=LrdqT_RRpIW8nCVw which is a clip of the whole video. It seems to be of similar age but i cannot find it as well
Interesting, thanks!