Espresso Shot Timer
Time your shot to the 25–30 second target zone. Start the timer when you engage the pump and watch the phases light up — no app download, no signup.
00.0s
Ready — press Start when you engage the pump
Session shots
No shots logged yet. Stop the timer and hit “Log this shot” to track your session.
Why 25–30 seconds matters
Shot time is the fastest way to read your espresso. Water under pressure extracts flavor compounds in a predictable order: acids and brightness first, then sweetness and body, then bitter and astringent notes. A shot that finishes in 15 seconds skipped most of the good stuff — it tastes sour and thin. One that drags past 35 seconds picked up too much of the late-stage stuff — bitter and drying.
The 25–30 second window is the accepted starting target for a standard 1:2 shot (say, 18g of coffee yielding 36g of espresso). It lands the shot right in the sweet middle. Treat it as a starting point, not a law: some coffees sing at 22 seconds, some want 32. Always let taste have the final vote — our dial-in guide walks you through adjusting grind to land in the zone.
What pre-infusion does
Pre-infusion is the low-pressure wetting of the coffee puck in the first seconds of the shot — before the full 9 bars of pressure hit. Soaking the grounds evenly first reduces channeling, where water punches a weak path through the puck and under-extracts the rest. Even if your machine doesn't have a dedicated pre-infusion stage, the first few seconds still behave this way, which is why the timer marks 0–8 seconds as its own blue zone.
How to use this timer
Set your phone where you can see it, place your cup on the scale if you have one, and press Start the moment you engage the pump. Watch the gold Extraction zone light up, aim to cut the shot in the green Target zone at 25–30 seconds, and log each shot to compare times across grind adjustments. If every shot is running fast, grind finer; if they're all slow, grind coarser — one change at a time.
The shortcut
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Why 25–30 seconds?
The 25–30 second window is the standard starting target for a 1:2 espresso shot — for example, 18g of coffee yielding 36g of espresso. It is long enough to extract sweetness and body, but short enough to stay ahead of bitterness. Treat it as a starting point, not a law: always adjust by taste.
What is pre-infusion?
Pre-infusion is the low-pressure wetting of the coffee puck in the first seconds of the shot. It soaks the grounds evenly before full 9-bar pressure hits, which reduces channeling and makes extractions more even. In this timer it is the 0–8 second blue zone.
Do I need a scale as well as a timer?
A timer only tells you how long the shot ran. A scale tells you how much espresso came out — your yield — which is what you need to calculate your brew ratio. For serious dialing-in you want both: time the shot with this timer and weigh the output, then adjust grind to taste. Our brew ratio calculator shows you the targets.