Brewing Time Calculator
Get the recommended brew time, grind size, and water temperature for any coffee brewing method — from espresso's 25-second window to cold brew's 24-hour steep.
Brewing Time Calculator
Why Brew Time Matters
Brew time determines how long water remains in contact with coffee grounds, directly controlling how much of the coffee's flavour compounds are dissolved — a process called extraction. Too short and the coffee is under-extracted: sour, thin, and lacking sweetness. Too long and it's over-extracted: bitter, harsh, and drying on the palate.
The correct brew time is always a function of grind size, water temperature, and brew method. Finer grinds have more surface area and extract faster — a finer pour over grind at 3 minutes will reach the same extraction yield as a coarser grind at 4 minutes. This is why the coffee to water ratio calculator and grind size work hand-in-hand: if your brew finishes too quickly, grind finer; too slowly, grind coarser. Time is the result, not the input.
Espresso's 25–35 second window is the most sensitive of any brewing method. A few seconds outside this range represents a significant shift in extraction. French press is the most forgiving — 4–5 minutes is a wide window where small variations have minimal impact on the final cup. Cold brew is measured in hours rather than minutes, making it the most time-tolerant method of all.
Brewing Time Reference Chart
| Method | Brew Time | Grind Size | Water Temp | Technique Note |
|---|---|---|---|---|
| Espresso | 25–35 sec | Fine | 90–96°C | 9 bar pressure; stop at target yield weight |
| AeroPress | 1:00–2:30 | Medium-Fine | 80–96°C | Lower temp = sweeter; invert for longer steep |
| Siphon | 1:30–2:30 | Medium | 90–93°C | Time the immersion; draw-down automatic |
| Pour Over | 2:30–4:00 | Medium-Fine | 93–96°C | Bloom first 30–45 sec |
| Turkish | 2:00–3:00 | Extra Fine | Near boil | Three risings for best foam |
| Chemex | 3:30–4:30 | Medium-Coarse | 93–96°C | Bloom 45 sec, then 3–4 pours |
| French Press | 4:00–5:00 | Coarse | 90–93°C | Stir at 1 min; decant immediately |
| Drip / Auto | 4:00–6:00 | Medium | 93–96°C | Machine-controlled; ensure 93°C+ water |
| Moka Pot | 4:00–5:00 | Fine | Stovetop | Remove from heat when gurgling starts |
| Cold Brew | 12–24 hours | Extra Coarse | Cold/Room | Fridge = 18–24 hrs; room temp = 12–16 hrs |
Frequently Asked Questions
A well-dialled pour over should finish in 2:30–4:00 minutes total, including a 30–45 second bloom. Most specialty coffee baristas target 3:00–3:30. If your brew drains faster than 2:30, grind finer. If it takes longer than 4:00, grind coarser. Brew time is your feedback mechanism for grind size.
AeroPress uses pressure during the press phase, which accelerates extraction and also uses a finer grind than French press. Both factors mean equivalent extraction is achieved in less time. AeroPress's flexibility (1–2:30 minutes) also comes from the wide temperature range it supports — lower temperatures extract more slowly, allowing you to steep longer without over-extraction.
A shot that finishes in under 20 seconds is running too fast — your grind is too coarse, or dose is too low, causing under-extraction. The result is a thin, sour, watery shot with pale, quickly dissipating crema. Grind finer or increase your dose. Never try to compensate by stopping the pump early; this just gives you less under-extracted espresso rather than a properly extracted one.