By Zencalcy Editorial TeamLast reviewed About us
Cold brew concentrate is typically 1 part coffee to 4–8 parts water by weight. Enter your target volume and strength to get the coffee and water amounts — then dilute before serving.
Cold brew concentrate ratio and volume.
coffee (g) = total (ml) ÷ (strength × 10) · water (ml) = total (ml) − coffee (g)
| Symbol | Meaning |
|---|---|
| strength | 1:4 = 25, 1:5 = 20, 1:8 = 12.5 — lower number means stronger concentrate |
1 L total at 1:8 → coffee = 1000 ÷ 12.5 = 80 g, water in concentrate = 920 g, dilute 1:1 before serving → 2 servings.
Continue with the Coffee Calculator, Coffee Footprint Calculator, or the Coffee Kick Calculator — or browse more coffee & tea tools and all cooking calculators.
7–10 days refrigerated in a sealed container. Oxidation and flavor loss after that.
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Content updated: September 2026