
Filter coffee is coffee brewed by gravity, letting hot water pass once through ground roast in a paper, metal or cloth filter.
It is the bulk liquid of long coffee drinks, hot or iced, and a small accent in shots. It brings color, roast flavor and some brightness but no sweetness, so sugar or syrup goes in separately.
Diluted espresso
Dilute with hot water: 1 part espresso to about 6–8 parts water comes close to filter strength.
Instant coffee
Works made at label strength (Nescafé: 1.8 g per 200 ml).
Dilute concentrate with about twice its volume of water, and heat it for a hot drink. It then replaces filter coffee in the same amount, with a softer taste.
A standard 1:3 Americano
Roughly twice as strong. Suits a 15 ml shot but not a long hot drink.
One for one, it takes over the drink because it is six to ten times stronger.
Best used freshly brewed — held hot it turns stale and bitter within an hour or so.