Cold Brew Ratio Calculator
Calculate the coffee and water needed for cold brew concentrate or ready-to-drink cold brew, with steeping time guidance.
mL
hours
Coffee Needed
167 g
Coffee (cups)2.0 cups
Water Needed1,000 mL
Servings (diluted if concentrate)8 servings
How to Calculate Cold Brew Ratio
Common Ratios (Coffee : Water by weight)
Steeping
Steep ground coffee in cold or room-temperature water for 12-24 hours. Most recipes recommend 16-18 hours. Longer steeping increases extraction but can also increase bitterness.
Grind Size
Use a coarse grind (similar to French press). Fine grinds will over-extract and make the cold brew harsh and gritty.
Example Calculation
1 liter of cold brew concentrate (1:6 ratio), 18-hour steep.
- 01Coffee = 1000 / 6 = 167 g (about 2 cups)
- 02Water = 1000 mL
- 03Steep for 18 hours in the refrigerator
- 04Strain and dilute 1:1 for 8 servings of 240 mL each.
Frequently Asked Questions
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