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AeroPress ratio
Most AeroPress recipes use a 1:15 ratio — about 15 g coffee for 225 ml water. Concentrate-style recipes go stronger (1:12) and are topped up with hot water after pressing.
AeroPress
Coffee to water ratio
Coffee
20 g
4 tbsp
Water
300 ml
10.1 fl oz
Cups
1.27
US cups
Ratio
1:15
by weight
How the aeropress ratio works
AeroPress ratios are coffee-to-water by weight, same as pour over. At 1:15, 15 g of coffee needs 225 ml of water — a typical single-mug brew that fits the chamber. Inverted vs standard changes steeping, not the ratio. For a larger mug, brew a stronger concentrate and dilute after the press.
How much coffee for AeroPress?
For one mug, use 15–17 g of coffee (about 2.5–3 tablespoons) with 225–250 ml of water at 1:15. The AeroPress chamber holds about 250 ml comfortably — that is a full-chamber brew at roughly 17 g coffee.
Want a 12 oz mug? Brew ~17 g with 200–220 ml as a concentrate, press, then top up with hot water to 355 ml. Or set the calculator to 1:12 and dilute after pressing.
AeroPress tips
- Use a medium-fine grind, slightly finer than pour over.
- Steep 1–2 minutes, then press slowly over about 30 seconds.
- For a concentrate to dilute like an Americano, brew at 1:12 or stronger.
How much coffee for an AeroPress?
Standard AeroPress recipes at 1:15 — about 15–17 g coffee for a single mug. The chamber holds about 250 ml.
| Brew size | Coffee | Water |
|---|---|---|
| Standard recipe (15 g) | 15 g (3 tbsp) | 225 ml (0.95 cups) |
| Full chamber (~17 g) | 16.7 g (3.3 tbsp) | 250 ml (1.05 cups) |
| Large mug (12 oz) | 23.7 g (4.7 tbsp) | 355 ml (1.5 cups) |
For a large mug, brew a stronger concentrate and top up with hot water after pressing.
Compare every method in the coffee to water ratio chart or check the grind size chart for AeroPress.
Frequently asked questions
What is the AeroPress ratio?+
A 1:15 ratio works for most standard AeroPress recipes — about 15 g coffee for 225 ml water. Concentrate-style recipes use 1:12 or stronger and are diluted after pressing.
How much coffee for AeroPress?+
Use 15–17 g of coffee (about 2.5–3 tablespoons) with 225–250 ml of water at 1:15. The AeroPress chamber holds about 250 ml of water comfortably.
AeroPress inverted vs standard ratio?+
The ratio is the same either way — inversion changes steeping, not strength. Inverted lets you steep longer without drip-through, which suits stronger 1:12 concentrate recipes.
What grind size for AeroPress?+
Medium-fine, slightly finer than pour over. Finer grinds need shorter steeps and slower presses; coarser grinds work with longer 2–3 minute steeps.