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Coffee Ratio Calculator - Free Brewing Guide

About Coffee Ratios

The right ratio is the secret to the perfect cup of coffee. Tastes vary but the golden ratio is the global quality standard.

Suitable Brewing Methods

  • V60 and Chemex
  • French Press
  • Drip Coffee

Results

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How the Coffee Ratio Calculator Works

Golden Ratio: 1g coffee per 16ml water (1:16)

The calculator uses standard coffee-to-water ratios, adjustable for strength preference and brewing method.

  1. 1

    Step 1

    Enter the number of cups desired

  2. 2

    Step 2

    Select your preferred strength

  3. 3

    Step 3

    Get coffee amount in grams and tablespoons

  4. 4

    Step 4

    View water amount needed

Use Cases

Consistent daily coffee brewing

Scaling for coffee gatherings

Dialing in new coffee beans

Comparing brewing methods

Tips

  • 1

    Golden ratio: 1:16 (1g coffee to 16ml water)

  • 2

    Stronger: 1:14, Lighter: 1:18

  • 3

    Espresso uses 1:2 ratio (very concentrated)

  • 4

    Use a scale for best results

Common Mistakes

  • Using stale coffee (use within 2-4 weeks of roasting)

  • Incorrect water temperature (should be 195-205°F)

  • Inconsistent grind size

  • Using tap water with chlorine

Frequently Asked Questions

What is the golden coffee ratio?
The golden ratio is 1:16 - one gram of coffee for every 16 grams (ml) of water. This produces balanced, flavorful coffee.
How many tablespoons of coffee per cup?
About 2 tablespoons (10-12g) per 6 oz cup. Adjust to taste. A tablespoon of coffee weighs about 5-7g.
Why does my coffee taste bitter?
Over-extraction from too-fine grind, too-hot water, or over-brewing. Try coarser grind and shorter brew time.
What temperature water for coffee?
195-205°F (90-96°C). Boiling water scorches coffee; too cool under-extracts. Wait 30 seconds off boil.

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