Pour Over Coffee Timer

Common uses for a pour over coffee timer

Single-cup V60 or Kalita brew
Dialling in a new bag of beans
Comparing two coffees side by side
Filter brewing for one or two

Pour over is percolation: water passes through the coffee bed and drains away, rather than sitting in it. That makes total brew time a result as much as an input — it depends on grind, bed depth and how you pour. The Specialty Coffee Association specifies the measurable parts: about 55 g of coffee per litre of water, water at 92–96 °C, and an extraction yield of 18–22%^[1].

For a single-cup cone, total time from the first drop of water to the last drip is commonly two and a half to three and a half minutes. That figure is a diagnostic rather than a target. If your brew drains in ninety seconds you are almost certainly grinding too coarse and under-extracting; if it takes five minutes the grind is too fine and the bed has choked. In both cases the grind is the fix, not the pour.

The bloom

Fresh coffee releases carbon dioxide when it first meets water. That gas pushes water away from the grounds and makes extraction uneven, so the first pour — roughly two to three times the coffee's weight in water — is there to let it escape. Thirty to forty-five seconds is the usual allowance.

Very fresh coffee blooms vigorously and may want the longer end; coffee a few weeks past roast barely blooms at all and does not need the wait. If you see almost no bubbling, your beans are old, and no amount of technique will fix that.

Pulse pours versus one continuous pour

Pouring in stages keeps the bed at a more consistent depth and gives you control over total time. A common pattern is the bloom, then two or three further pours at roughly even intervals, each finishing before the bed runs dry.

A single continuous pour is simpler and works, but it front-loads the water and tends to run faster. Neither is correct in the abstract — what matters is that you do the same thing each time, so that when you change the grind you can actually tell what the grind did.

Ratio and temperature follow the SCA brewing standard^[1]. The stage timings are a widely used convention, not a standard, and total time is a diagnostic rather than a target.

Pour over stages for a single cup
Stage	Water	Clock
Bloom	2–3x the coffee weight	0:00–0:45
Second pour	to about 60% of total water	0:45–1:15
Third pour	to 100% of total water	1:15–1:45
Drawdown	no pouring	to 2:30–3:30

Draining much faster than 2:30 usually means the grind is too coarse; much slower than 3:30 means too fine.
For 15 g of coffee, total water is about 250 g at the SCA ratio.

Source: Coffee Standards — brewing ratio, water temperature and extraction yield

Sources

Coffee Standards — brewing ratio, water temperature and extraction yield , Specialty Coffee Association — accessed 2026-07-28

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❓ Frequently Asked Questions

How long should the bloom last?

Thirty to forty-five seconds, using two to three times the coffee's weight in water. The point is to let carbon dioxide escape so the later pours extract evenly. Very fresh coffee wants the longer end; if you see almost no bubbling at all, the beans are stale.

What does it mean if my pour over drains too fast?

Usually that the grind is too coarse, and the coffee will taste thin and sour from under-extraction. Grind finer and brew again before changing your pouring pattern — the grind has a much larger effect than pour technique.

What if the water sits on top and drains too slowly?

The grind is too fine and the bed has choked, which over-extracts and tastes bitter. Grind coarser. Stirring or agitating heavily late in the brew can also compact the bed and cause the same symptom.

Is total brew time a target I should hit?

No — it is a diagnostic. Two and a half to three and a half minutes for a single cup tells you the grind is roughly right. Chasing the number by pouring faster or slower papers over a grind problem instead of fixing it.

Should I pour in pulses or all at once?

Either works. Pulses keep the bed depth consistent and give more control over total time; a single pour is simpler and runs faster. What matters is doing the same thing every time, so that when you change the grind you can tell what the grind actually changed.

How much coffee for one cup?

About 55 g per litre, which works out around 15 g of coffee to 250 g of water for a single cup. That is the middle of the SCA brewing standard. Weigh both if you can — the ratio matters more than any timing on this page.