What is the Golden Ratio for coffee?

The 'Golden Cup Standard' defined by the SCA is 1:15 to 1:18 (1 gram of coffee to 15-18 grams of water). 1:15 is strong and rich, while 1:18 is lighter and more tea-like.

Does the grind size matter?

Yes! The ratio tells you how much coffee to use, but grind size controls how fast the water flows. Use coarse for French Press, medium for Drip/V60, and fine for Espresso.

How do I measure water without a scale?

1 ml of water weighs exactly 1 gram. So if you need 300g of water, measure 300ml. For coffee beans, a standard tablespoon is roughly 5-7g, but a scale is much more accurate.

☕ Coffee Ratio Calculator

Brew better coffee by using the right ratio. From strong French Press to delicate Pour Over.

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💡 Expert Tips

Bloom Phase. For pour-over, pour 2x the weight of coffee in water first (e.g., 30g water for 15g coffee) and let it sit for 30-45 seconds. This releases CO2 gas and makes the extraction more even.

Water Temperature. Don't use boiling water (100°C). It burns the coffee. Aim for 93°C-96°C (200°F-205°F). Wait 30 seconds after boiling before pouring.

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James Chen

SCA Certified Barista

"Consistency is key. Using a scale and a timer is the single biggest upgrade you can make to your morning coffee routine."