How much coffee per cup of filter? A ratio calculator for your mugs

Filter coffee that tastes too weak or too harsh usually comes down to one number: the ratio of coffee to water. The SCA guideline is about 55 grams of coffee per litre, roughly 1:18, with a little leeway either side.

Use the calculator to turn that into grams and millilitres for your mugs, see why the pot holds less than you poured, and learn when to change the ratio and when to change the grind instead.