Coffee Needed
210g
Water
32 oz
Ratio
1:4.5
Concentrate is diluted 1:1 with water or milk before drinking.
$8 for 16oz bag = $0.50/oz
| Style | Light | Medium | Strong |
|---|---|---|---|
| Concentrate | 1:5 | 1:4.5 | 1:4 |
| Ready-to-Drink | 1:15 | 1:12 | 1:8 |
Inputs
Result
32 oz = 946 ml. Ratio 1:4.5: 946 / 4.5 = 210g coffee (39.7 tbsp). Yield: 946 × 0.8 = 757 ml (25.6 oz). Diluted 1:1 = ~6.4 servings of 8oz cold brew.
Inputs
Result
16 oz = 473 ml. Ratio 1:12: 473 / 12 = 39.4g coffee. Yield: 473 × 0.8 = 378 ml (12.8 oz). About 1.6 servings ready to drink.
Inputs
Result
4 cups = 32 oz = 946 ml. Ratio 1:4: 946 / 4 = 237g coffee. Yield: 946 × 0.8 = 757 ml (3.2 cups). Diluted 1:2 with milk = ~9.6 cups of latte.
For cold brew concentrate (diluted before drinking), use a 1:4 to 1:5 coffee-to-water ratio by weight. For ready-to-drink cold brew, use 1:8 to 1:15. A 1:5 concentrate diluted 1:1 with water or milk produces a smooth, balanced cup that rivals coffee shop quality.
| Brew Type | Light | Medium | Strong |
|---|---|---|---|
| Concentrate | 1:5 | 1:4.5 | 1:4 |
| Ready-to-Drink | 1:15 | 1:12 | 1:8 |
| Coffee per Liter | 67–200g | 83–222g | 125–250g |
Cold brew should steep 12–24 hours depending on desired strength and method. Room temperature brewing extracts faster (12–16 hours), while refrigerator brewing produces a smoother result (16–24 hours). Over-steeping past 24 hours can extract bitter, woody flavors.
Use extra-coarse grind for cold brew, similar to raw sugar or breadcrumbs. Coarse grind prevents over-extraction during the long steep time and makes filtering easier. If your cold brew tastes bitter, your grind is too fine. If it tastes weak and sour, try a slightly finer grind.
Homemade cold brew typically costs $0.30–$0.75 per serving, compared to $4–$6 at coffee shops. A 12oz bag of specialty beans ($12–18) makes about 8–12 cups of concentrate-based cold brew. The main cost is beans since you use significantly more coffee than hot brewing methods.
Yes, but medium to dark roast beans work best for cold brew. The long extraction process brings out chocolate, nutty, and caramel notes from darker roasts while minimizing bitterness. Light roasts can taste sour or tea-like in cold brew. Single-origin and blends both work well.
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Last Updated: Mar 9, 2026
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