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Cold Brew Coffee Preparation Calculator

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This calculator helps you prepare cold brew coffee by calculating the precise coffee-to-water ratios based on your preferred steeping time and method.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Coffee Weight, Water Volume, Steeping Time, and Steeping Method in the units shown.

Step 2

Read Adjusted Water Volume, Coffee to Water Ratio, and Final Coffee Strength in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Standard Immersion

Coffee Weight: 100 grams; Water Volume: 1,000 milliliters; Steeping Time: 12 hours; Steeping Method: Immersion

Adjusted Water Volume: 1,000 milliliters; Coffee to Water Ratio: 0.1 ratio; Final Coffee Strength: 0.1 strength

Strong Immersion

Coffee Weight: 150 grams; Water Volume: 1,000 milliliters; Steeping Time: 18 hours; Steeping Method: Immersion

Adjusted Water Volume: 1,000 milliliters; Coffee to Water Ratio: 0.15 ratio; Final Coffee Strength: 0.15 strength

Drip Method

Coffee Weight: 120 grams; Water Volume: 1,200 milliliters; Steeping Time: 10 hours; Steeping Method: Drip

Adjusted Water Volume: 1,020 milliliters; Coffee to Water Ratio: 0.1 ratio; Final Coffee Strength: 0.085 strength

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