Comment on I want it to slap me across the face
exasperation@lemmy.dbzer0.com 1 week ago
Caffeine is very slightly negatively correlated with darkness of the roast. Dark roasts tend to have less caffeine than light roasts.
Also, drip/pourover/percolator/press coffee tends to have more caffeine per serving than espresso-based drinks. The longer steep time extracts more of the caffeine, and serving sizes tend to just be so much larger to overcome the higher caffeine per unit volume of espresso.
So in reality, the lighter pourover coffee where you have the roaster or barista talking about tasting notes tends to be higher caffeine than the dark, densely brewed bitter stuff.
My understanding is that dark roast is just as strong or even stronger by weight, but the longer roast makes it lighter for the same volume. Since people tend to use scoops to measure out their coffee the lighter blends end up stronger.
But if you measure by weight instead, that’s no longer the case.
AnimalsDream@slrpnk.net 1 week ago
Basically this, although from what I remember the caffeine difference between light and dark roast is only about 2%.
It is also worth noting that for most people (due to the standard western diet), their daily coffee is one of the few appreciable sources of polyphenols they’re likely to get, and lighter roasts are a better source of that as well.
Aaaand if that weren’t enough, dairy cancels out the health benefits of coffee by reducing bioavailability.