Best Grind Size for Every Brew Method: A No-Nonsense UK Guide

Ask a room full of coffee drinkers why their brew tastes off and most will blame the beans. Nine times out of ten, it's the grind. Grind size is the single biggest variable you can control — and once you understand it, everything clicks.

Here's your no-nonsense guide to getting it right, whatever you're brewing with.

Why Grind Size Matters

Coffee extraction is all about surface area and contact time. Grind too fine, and water struggles to pass through — you get bitter, over-extracted sludge. Grind too coarse, and water zips past without picking up the good stuff — weak, sour, disappointing.

Different brew methods use different contact times, which is why each one needs a different grind. There's no universal setting. Sorry.

Think of it like this: finer grind = more surface area exposed = faster extraction. Coarser grind = less surface area = slower extraction. Match the grind to your brew method's contact time and you're golden.

☕ Quick facts
The UK drinks approximately 98 million cups of coffee per day — British Coffee Association, 2023
80% of UK coffee is drunk at home — Allegra World Coffee Portal, 2024
Grind freshness: pre-ground coffee loses 60% of its aroma within 15 minutes of grinding — SCA research

The Grind Size Guide

Here's the complete coffee grind size chart — from finest to coarsest. Bookmark this table and come back to it whenever you're dialling in a new brew method.

Method by Method

Espresso — Extra Fine

High pressure, short time. The grind needs to resist that pressurised water just enough to force a slow, concentrated extraction. Dial in too coarse and you'll get a pale, watery shot. Too fine and it'll choke your machine. Our espresso guide goes deeper →

For espresso, we'd recommend a bold, full-bodied coffee that can stand up to the pressure — our Sumatra or The Dark Horse are both brilliant choices.

Cafetière / French Press — Coarse

The cafetière is forgiving, which is why it's so popular in the UK (and why it's the first brew method most people try). The metal mesh filter isn't fine enough to catch small particles, so grind too fine and you'll end up with silt in your cup. Keep it coarse — roughly the texture of rough sea salt. Four minutes of brewing, then press slowly. Full cafetière guide →

The cafetière really lets the character of the coffee shine through. Try our Everyday Blend for a reliable daily brew, or Guatemala for something more interesting.

AeroPress — Medium-Fine

The AeroPress is delightfully flexible. You can brew it fast with a finer grind or slower with a coarser one. Start medium-fine and adjust from there — it's hard to make bad coffee with an AeroPress once you've got the basics. AeroPress deep dive →

V60 / Pour Over — Medium

Pour over rewards precision. You're pouring hot water through a paper filter over a period of about 3–4 minutes. Medium grind lets the water move at the right pace. Too fine and you get over-extraction; too coarse and the water races through before it can pick up the flavour.

Pour over is where lighter, more nuanced coffees really sing. Our Ethiopia Yirgacheffe (floral, citrusy, delicate) is stunning through a V60.

Chemex — Medium-Coarse

The Chemex uses a much thicker filter than most pour overs, which slows the draw-down and removes more oils. You need to go slightly coarser than a V60 — medium-coarse, roughly the texture of rough sand. The result is an incredibly clean, bright cup. If your Chemex brew tastes thin, go slightly finer. If it takes forever to drain, go coarser.

Drip / Filter Machine — Medium

If you're using a drip filter machine (the kind with a water tank, basket, and carafe), you want a standard medium grind — like granulated sugar. Most filter machines have a set brew time of 4–6 minutes that you can't change, so the grind is your main variable. If the coffee tastes bitter, try going a touch coarser. If it's watery, a touch finer.

Moka Pot — Fine (Not Espresso-Fine)

People often make this mistake — grinding moka pot coffee as fine as espresso. Don't. The moka pot uses steam pressure, not espresso-level pressure, so a very fine grind blocks the flow and can build dangerous pressure in the pot. Go fine, but stop short of espresso.

Turkish Coffee — Powder-Fine

Turkish coffee requires the finest grind of all — practically powder. It's brewed by simmering the grounds in water (traditionally in a cezve), and the grounds stay in the cup. Most electric burr grinders can't go fine enough for Turkish, so you'll need a dedicated Turkish grinder or buy pre-ground Turkish coffee. The result is intense, thick, and aromatic.

Cold Brew — Extra Coarse

Cold water extracts slowly — that's the whole point. You need maximum coarseness so that after 12–24 hours of steeping, you get sweet, smooth coffee rather than a bitter mess. If your cold brew is bitter, go coarser. Always.

Grinder Matters More Than You Think

A blade grinder — the kind that looks like a tiny food processor — doesn't actually grind. It chops unevenly, creating a mix of fine dust and chunky bits. The result is uneven extraction: bitter and sour at the same time.

A burr grinder (even a cheap hand grinder) crushes beans to a consistent size. Consistent grind = consistent extraction = consistently better coffee. It's the single best upgrade most home brewers can make.

Our recommendation for UK buyers: A hand burr grinder like the Hario Skerton or Timemore C2 (both under £40) will transform your coffee overnight. For electric, the Wilfa Svart or Baratza Encore are the gold standard — not cheap, but they'll last years and pay for themselves in better coffee.

Fresh Ground vs Pre-Ground

Pre-ground coffee isn't evil, but it's already stale by the time it reaches you. If you're ordering whole beans and grinding at home, you're ahead of 80% of the UK.

That said, not everyone has a grinder (or wants the faff at 6am). That's why all our coffees come in five grind options: whole bean, cafetière, filter, espresso, and AeroPress. We grind to order — so your coffee is ground fresh on the day it ships, not weeks ago in a factory. Browse our freshly roasted whole beans →

The Quick Cheat Sheet

• Too bitter? Go coarser or brew for less time
• Too sour/weak? Go finer or brew for longer
• Sludge in the cup? Go coarser (especially for cafetière)
• Watery espresso? Go finer or check your dose
• Cold brew too strong? Dilute with water (it's a concentrate) or reduce steep time
• Not sure where to start? Go medium and adjust from there

Frequently Asked Questions

What grind size do I need for a cafetière?
Coarse — roughly the texture of rough sea salt or breadcrumbs. Brew for 4 minutes, then press slowly. If you get sludge in your cup, your grind is too fine. The cafetière is the most forgiving brew method, so don't overthink it.

Can I use espresso-ground coffee in a cafetière?
You can, but it'll be very bitter and full of fine silt. Espresso-ground coffee is designed for 25–30 seconds of high-pressure extraction, not 4 minutes of immersion. If all you have is espresso grind, brew for just 2 minutes and accept it won't be ideal.

Does grind size affect caffeine?
Slightly. Finer grinds extract more caffeine because of the increased surface area. But the difference between grind sizes is small compared to the difference between, say, a single espresso shot and a large cafetière. Don't choose your grind based on caffeine — choose it based on your brew method.

Is pre-ground coffee always medium grind?
Most supermarket pre-ground coffee in the UK is a generic medium grind — designed as a one-size-fits-all compromise. It works acceptably in filter machines and pour overs, but it's too fine for cafetière (you'll get silt) and too coarse for espresso (you'll get watery shots). That's why we offer five grind options when you order.

How do I know if my grind is right?
Taste is the test. Bitter and harsh? Your grind is too fine (or you're brewing too long). Sour and thin? Too coarse (or too short). When the grind is right, you'll taste sweetness, clarity, and balance — the coffee tastes like what it should taste like, not a compromise.

What's the best grind size for a Nespresso or pod machine?
If you're using factory-sealed pods, you don't need to worry about grind size at all — it's pre-set. If you're using refillable pods, go for a fine grind (similar to espresso but not quite as fine). You'll need to experiment — different refillable pods work better with slightly different grind levels.

Keep exploring

• How to brew a cafetière properly →
• How to brew AeroPress →
• How to make espresso at home →
• How to make great coffee without a machine →
• Light, medium or dark roast — which is right for you? →
• Shop freshly roasted coffee →