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Espresso Ratio Calculator

Calculate espresso output based on coffee dose and brew ratio

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๐Ÿ‡ฉ๐Ÿ‡ฐ All calculations are based on Danish rules, rates, and currency (DKK). This calculator is translated for convenience but applies exclusively to Denmark.

Espresso ratio calculator

Making perfect espresso is about balancing coffee dose, output, and extraction time. Our calculator helps you find the right brew ratio.

What is brew ratio?

Brew ratio is the relationship between dry coffee (input) and finished espresso (output) measured in grams. A standard ratio is 1:2, meaning 18 grams of coffee yields 36 grams of espresso. A lower ratio (1:1.5) gives a stronger ristretto, while a higher ratio (1:2.5-3) gives a lighter lungo.

Extraction time

The ideal extraction time for espresso is 25-30 seconds. Under 25 seconds produces sour under-extracted espresso. Over 30 seconds produces bitter over-extracted espresso.

Frequently Asked Questions

What is the best brew ratio for espresso?

The most common brew ratio for espresso is 1:2. With 18 grams of coffee as input, you get 36 grams of espresso output. This gives a well-balanced espresso. Adjust to 1:1.5 for a ristretto or 1:2.5 for a lungo depending on preference.

How long should an espresso extract?

An espresso should extract in 25-30 seconds from when the pump starts. Under 25 seconds means the grind is too coarse โ€“ adjust finer. Over 30 seconds indicates too fine a grind. Ideally, you see a steady stream resembling warm honey.

What is the difference between ristretto, espresso, and lungo?

The difference is in brew ratio: Ristretto uses about 1:1-1:1.5 ratio for a short, concentrated shot. Standard espresso uses 1:2. Lungo uses 1:2.5-1:3 for a longer, milder shot. All three use the same coffee dose but output varies.

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