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Free Coffee Tool
AeroPress Calculator
Enter your coffee amount and strength — get the exact water, bloom, and timing for standard or inverted brewing.
By Michael Anderson
Last Updated: September 21, 2026
AeroPress brewing combines steeping with light pressure, and it's flexible enough to support ratios from concentrated espresso-adjacent shots to lighter, drip-style cups. Enter your coffee amount and preferred strength to get your water, bloom, and timing.
Calculate Your Brew
1:15
Strong (1:12)Light (1:17)
Total water
255 ml (8.6 oz)
Bloom water (first pour)
34 ml
Plunge at
1:30 – 2:00
Standard: cap and filter on the mug from the start.
Get a Consistent Fine-Medium Grind
AeroPress rewards a consistent grind since the steep time is short — these burr grinders handle the fine-medium range well.
4.6· $199-$299
Baratza Encore ESPAn electric grinder with stepless micro-adjustment under $250 and Baratza's repair-friendly design, spanning espresso through French press.
4.4· $179-$199
Breville Smart Grinder ProA versatile electric grinder for both espresso and filter coffee, with a Dosing IQ feature for consistent shot-to-shot repeatability.
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Standard vs. inverted method
The standard method sits the AeroPress cap-and-filter-down on your mug from the start, so water begins dripping through as soon as you pour. It's simple and has one less step, which makes it a good choice for a quick brew.
The inverted method brews with the AeroPress upside down (plunger end down, open end up), so nothing drips through until you flip it onto your mug and press. This gives more control over exact steep time, at the cost of an extra flip step that takes a bit of practice to do without spilling.
Tips for a better AeroPress cup
- Rinse the paper filter first. This removes any papery taste and pre-warms the chamber.
- Stir after the bloom. A few gentle stirs after the initial bloom pour helps even out extraction before you steep the rest.
- Dilute a strong brew with hot water. If you brewed concentrated (1:12 or stronger), add hot water afterward to taste rather than brewing lighter from the start — you keep more control this way.
Frequently Asked Questions
Most recipes fall between 1:12 and 1:15 for a concentrated brew you can drink straight or dilute, though some longer-steep recipes go as light as 1:17.
There's no single official ratio — AeroPress is flexible enough to support a wide range of styles.
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