Espresso Pouring Too Fast or Too Slow: Dose, Grind and Machine Fixes

Last updated: September 2026

In 30 seconds:

• A normal double shot runs about 25–30 seconds from the moment you hit the button.
• Much faster or much slower, and it’s nearly always the grind, the dose or the puck prep — not a broken machine.
• Fast and watery? Grind finer, or put more coffee in the basket.
• Slow and dripping? Grind coarser, or take coffee out.
• Change one thing, pull another shot, then judge. Change three and you’ve learnt nothing.
• If the time swings about on its own, with nothing changed by you, that’s when to suspect the machine.

New to setting a grinder? Start with our step-by-step guide to dialling in a coffee grinder. This page is the troubleshooting version — for when the shots were fine and now they’re not.

Why does shot time matter?

Time is the easiest thing to measure on a bar. It tells you how hard the water had to work to get through the coffee. Too easy means weak. Too hard means harsh.

Why one change at a time?

Grind, dose and tamp all pull in the same direction. Move two together and you can’t tell which one did the work. You’ll also overshoot and waste beans getting back.

When is it actually the machine?

Rarely, but it happens. The clue is inconsistency. If you change nothing and the time moves anyway, look at the machine. If the time only moves when you move something, it’s you.

The honest summary. The biggest mistake we see is chasing the timer. A shot runs quick, so the grinder gets cranked three steps finer in one go. The next shot chokes. Then it gets cranked back four. Now nothing works and the machine gets the blame. Move one step. Pull a shot. Repeat.

What a normal shot actually looks like

The numbers most coffee shops work to

• Shot time: 25–30 seconds for a double, timed from when the pump starts
• Dose: whatever fills your basket properly — usually 18–20g in a standard double
• In the cup: roughly twice the weight of the dry coffee
• Look: starts as slow dark drips, thickens into a steady honey-coloured stream, pales near the end
• Warm-up before any of this counts: about 15 minutes from cold

These are working conventions, not a manufacturer setting. Your own model manual is the place to check anything the machine itself controls.

One thing worth saying plainly: a cold machine pours badly no matter what you do with the grinder. Fifteen minutes is the real number. Dialling in on a machine that’s been on for four minutes wastes a whole bag of beans.

Espresso pouring too fast: the usual causes

A fast shot means the water found an easy route. It got through in 15 seconds instead of 27, and the cup tastes thin, sour and watery.

Work through these in order

• Grind is too coarse. The most common cause by a mile. Go one step finer and pull again.
• Dose is too low. Not enough coffee in the basket leaves a gap. Water rushes the sides.
• Beans have aged. Old coffee lets go of its resistance. The same setting that worked last month runs quicker now.
• Uneven tamp. A tamp pressed at an angle leaves one side loose. Water goes straight through the soft edge.
• Clumpy grounds. Static and clumping leave voids in the puck. Our guide to fixing grinder static and clumping covers this.
• Worn basket. Baskets stretch over years of use. The holes open up and flow speeds up.

The channelling giveaway. Channelling is when water carves a tunnel through the coffee instead of soaking through it evenly. You’ll see a jet squirting off to one side, or the stream going pale and wild halfway through. Knock the puck out afterwards. A hole or a crater in it means the water tunnelled, and that’s a puck-prep problem, not a grind problem.

Espresso pouring too slow: the usual causes

A slow shot means the water struggled. Forty seconds, a dribble instead of a stream, and a bitter, ashy cup.

Work through these in order

• Grind is too fine. Again, the most likely answer. One step coarser, pull again.
• Dose is too high. An overfilled basket has nowhere to expand. The puck jams against the shower screen.
• Tamped far too hard. You need firm and level, not brute force. Weight, not effort.
• Fresh beans, straight from roasting. Very fresh coffee releases a lot of carbon dioxide and slows the flow. A few days’ rest helps.
• Blocked basket holes. Old oils build up and close them. Soak the basket overnight in cleaning powder.
• Blocked shower screen. Same problem, one level up. This is what a daily group clean prevents.

Sounds to listen for. A pump working much harder than usual, or a shot that starts and then stalls to nothing, points at a blockage rather than a setting. If you also see steam pressure dropping away, read our fixes for a machine with no steam or low pressure — that’s a different fault with a different cure.

The six-step check that finds it in ten minutes

1. Check the machine is properly warm. Fifteen minutes from cold, minimum. If it’s been on ten, wait.
2. Flush the group for two seconds. Water should come out clean and even. A spitting, sideways flush means the screen needs cleaning first.
3. Weigh your dose. Not a scoop, not a guess. Write the number down so you can compare.
4. Level and tamp flat. Tap the grounds level with a finger, then press straight down. Check the puck edge is even all the way round.
5. Time the shot. Start the clock when you hit the button. Note the seconds and the taste.
6. Change one thing and repeat. Usually the grind, by one step. Then pull again and compare against your written number.

If three rounds of that leave you nowhere — the time still wandering with the same dose, same grind, same beans — stop adjusting. The problem is the machine, and the next section is for you.

Quick symptom lookup

When the timing moves on its own: machine faults

Everything above assumes the machine is doing its job. Sometimes it isn’t. These are the faults that show up as wandering shot times.

Pressure that isn’t holding steady

If the pressure needle drops away hard during every shot, or sits somewhere different each morning, the problem is upstream of your grinder. Our guide to reading a coffee machine pressure gauge explains what each needle is telling you and what normal looks like.

A worn group head seal

A tired seal lets pressure escape round the edge of the portafilter. You’ll usually see a drip or hear a hiss from the group as well. Replacing it is a job most shops can do themselves — see how to replace group head seals and shower screens.

A clogged shower screen

The screen spreads water over the whole puck. When it clogs, water arrives in one place and tunnels. That’s a fast shot with a terrible taste, and no grind setting fixes it.

Limescale, the slow creep

Scale is the one that catches people out, because nothing goes wrong on any given day. The shots just get slightly slower month by month until the machine feels tired. Regular descaling is the cure — our guide to cleaning and descaling a commercial coffee machine has the routine. Prevention is better: a filter or softener, changed every two months, stops most of it ever forming. Our water filter and softener guide covers which you need.

If yours is a dual-fuel machine

Running a mobile setup rather than a shop? A dual-fuel machine has a second heat source and its own set of faults. Those are covered separately in our Fracino CON2ELPG troubleshooting guide.

What we stock, and what we don’t

Being straight about this saves you a phone call.

We do stock machines, grinders and a few accessories — including the Fracino stainless steel tamper from £49.99, which is the one tool on this page worth buying properly. A flimsy plastic tamper that doesn’t match your basket is a real cause of uneven pucks.

We don’t list individual filter baskets, portafilters, distribution tools or bar scales. If you need one, tell us the model and serial number of your machine and we’ll sort it through our supply chain. Don’t go hunting for parts yourself — basket sizes vary between models, and the wrong one makes every shot worse.

Buying rather than fixing? Our guide to electric coffee machines for coffee shops compares the range, and the coffee grinder buying guide covers what actually makes a grinder easy to keep consistent.

When to stop and send it in

Send it in when the fault is inside the machine. That means a pressure fault you can’t shift, a pump that’s failing, or anything electrical.

How the warranty works

• Warranty is back-to-base. The machine goes to the workshop; an engineer doesn’t come to you.
• Collection costs from £95, return from £115 — around £210 for the round trip.
• Drop it to the workshop yourself and there’s no collection charge at all.
• That applies to small and medium machines. Plan around it before you order, not after.

Before it goes anywhere, write down what you’ve already tried. Dose, grind setting, shot times, what you cleaned. It shortens the diagnosis and it can save you a charge for a fault that turned out to be a blocked basket.

Five mistakes that keep shots inconsistent

1. Adjusting the grinder mid-service. You’ll never get it back. Dial in before you open, then leave it.
2. Guessing the dose. A scoop varies by grams. Grams are the whole game.
3. Changing beans and settings on the same day. New beans always need a new setting. Do one, then the other.
4. Skipping the daily group clean. A week of missed cleans is a slow shot you’ll blame on the grinder.
5. Judging a shot on a cold machine. The first pour of the day is a flush, not a measurement.

Just installed a machine and nothing is behaving? Work through our first-day checklist for a new coffee machine before you touch the grinder.

Two worked examples

Fracino Cherub CHE1 — one group, tank-fed

Quick specs

• Groups: 1
• Boiler: 2.3 litres
• Water: 3 litre tank — no plumbing needed
• Power: 2.85 kW · 13 A standard socket
• Size and weight: 380 × 360 × 460 mm · 18 kg
• Price: from £1,240
• View the Cherub CHE1 →

What usually goes wrong here

Tank-fed machines depend on what you pour into them. Fill the tank with hard tap water and scale builds fast in a small boiler. Slow shots on a Cherub are very often a water problem, not a grind problem.

Fracino Bambino BAM2E-3V-IVORI — two group, plumbed in

Quick specs

• Groups: 2, automatic dosing
• Output: 240 cups per hour semi-automatic, up to 400 automatic
• Boiler: 10 litres
• Power: 2.85 kW · 13 A
• Size and weight: 535 × 580 × 500 mm · 55 kg
• Price: from £2,380

What usually goes wrong here

Automatic dosing makes a fast shot hard to spot. The machine stops on volume, so a runaway shot still fills the cup — it just tastes thin. Time it by hand now and then rather than trusting the button.

Frequently asked questions

How long should a double espresso take?

About 25 to 30 seconds, timed from when the pump starts. That’s a working convention rather than a fixed rule. Taste matters more than the stopwatch, but if you’re well outside that window something usually needs changing.

My espresso pours in 10 seconds. What do I change first?

The grind, by one step finer. If that doesn’t shift it, add a gram to the dose. Check the beans aren’t old and check your basket isn’t worn. Fix one at a time and re-time each shot.

My espresso takes 45 seconds and barely drips. What’s wrong?

Most likely the grind is too fine or the basket is overfilled. Go one step coarser first. If it’s still crawling, soak the basket and clean the shower screen — blocked holes cause the same symptom.

Why is my shot time different every single time?

Inconsistent timing with an unchanged setting usually points at prep or hardware, not the grind. Weigh two doses to the same gram and tamp both flat. If the times still differ, look at the pressure, the group seal and the screen.

What is channelling and how do I spot it?

Channelling is water tunnelling through one part of the coffee instead of soaking through it all. You’ll see a jet spraying sideways, or the stream turning pale early. Knock out the puck afterwards — a hole or crater confirms it.

Does grinding finer always slow the shot down?

Usually, yes. But past a point it backfires. Grind too fine and the puck cracks under pressure, which lets water through fast and tastes bitter. If finer is making things worse, you’ve gone past the useful range.

Can hard water make my espresso pour slowly?

Yes, over time. Limescale narrows the waterways and coats the heating element, so flow drops month by month. A filter or softener changed every two months prevents most of it, and descaling clears what’s already there.

When should I stop adjusting and get the machine looked at?

When the same dose and grind give different results three rounds running, or when pressure won’t hold. Warranty work is back-to-base: collection from £95 and return from £115, or drop it to the workshop yourself and pay no collection fee.