Coffee

Coffee: common questions

The questions people actually arrive with, answered with figures read from this catalogue rather than rounded off.

How much caffeine is in a cup of coffee?

It depends far more on the preparation than on the bean. Across the 127 coffees in this catalogue the range runs from 8 mg in a 8 oz cup (240ml) serving of Colombia Sugarcane Decaf Coffee to 205 mg in a 12 oz glass serving of Nitro Cascade Cold Brew Coffee. Every coffee page states the figure for its own stated serving, alongside a concentration in mg per 100 ml, because a large weak cup and a small strong one can carry the same dose.

Which coffee is actually the strongest?

By concentration rather than by cup size, Italian Ristretto Double Shot at 250 mg per 100 ml. That distinction matters: a 355 ml cold brew can show a much larger milligram figure than an espresso while being a quarter of its concentration. Ranking by dose answers "how much caffeine will I drink"; ranking by concentration answers "how strong is this liquid", and they give different orders.

Which coffees are lowest in acidity?

29 of the 127 coffees here are classified low acidity, and they can be filtered directly on this page. One important caveat: that rating is a tasting classification — how bright or sharp the cup reads — not a pH measurement, a titratable acidity figure, or a prediction of how your stomach will respond. Those are four different things, and a coffee that tastes low in acidity is not necessarily lower in pH.

Is decaf coffee completely caffeine-free?

No. Decaffeination removes most of the caffeine but not all of it — a decaf cup typically retains a small residual amount rather than none. This catalogue lists 1 decaf entry. If you need genuinely zero caffeine, a herbal infusion is the reliable answer rather than a decaf.