Grind size is the single biggest variable most home brewers get wrong. The same beans can taste sharp and sour or heavy and bitter depending on nothing more than how coarsely you grind them. This guide shows you exactly which grind size matches which brewing method — plus a quick word on roast profile and bag size so you buy the right coffee, in the right amount, ground the right way.
Why grind size matters so much
When water meets coffee, it extracts flavour. Finer grinds have more surface area, so they extract faster; coarser grinds extract more slowly. Match the grind to how long your method keeps water in contact with the coffee and you get a balanced cup. Get it wrong and you either over-extract (bitter, harsh) or under-extract (sour, weak, watery).
- Too fine for the method → slow flow, over-extraction, bitterness.
- Too coarse for the method → fast flow, under-extraction, sourness.
Coffee grind size by brew method
| Brew method | Grind size | Looks/feels like |
|---|---|---|
| Espresso | Fine | Powdered sugar |
| Moka pot | Fine–medium | Fine sand |
| AeroPress | Medium-fine | Between sand and salt |
| Pour-over (V60, Chemex) | Medium | Table salt |
| Drip / filter machine | Medium | Table salt |
| French press / cafetière | Coarse | Coarse sea salt |
| Cold brew | Extra coarse | Breadcrumbs |
Two of these methods are worth a full walkthrough: see our V60 pour-over ratio guide for medium-grind filter coffee, and our cold brew at home method for the coarse end of the scale.
Grind fresh, or buy pre-ground?
Whole beans ground just before brewing always taste better — coffee starts losing aroma within minutes of grinding. A consistent burr grinder is the best single upgrade you can make; a hand grinder like the Kinu M47 or an electric burr grinder both give the even particle size that makes the table above actually work. Browse grinders and gear in coffee brewing accessories. If you'd rather buy ground, just tell us your method so it's ground correctly.
A quick word on roast profile
Roast changes flavour, not grind:
- Dark roast — bold, chocolatey, low acidity. Great through milk and in espresso.
- Medium roast — balanced and versatile. A safe all-rounder for filter and French press.
- Light roast — bright, fruity, more acidic. Shines in pour-over and shows off a single origin.
Explore all three across our roasters in specialty coffee in Dubai, roasted to order and delivered across the UAE.
Which bag size should you buy?
- 250 g — under a cup a day, or trying something new. ~12–15 cups.
- 500 g — 1–2 cups a day. Lasts around two weeks at peak freshness.
- 1 kg — 2–3 cups a day or a household. Best value; consider a subscription for smaller, fresher deliveries.
Coffee is freshest in the first month after roasting, so buy what you'll drink in that window rather than stockpiling.
Frequently asked questions
What grind size should I use for espresso?
A fine grind, like powdered sugar. Espresso forces water through the coffee quickly under pressure, so it needs a fine grind to extract properly.
What grind size is best for a French press?
A coarse grind, like coarse sea salt. The long steep and metal filter of a French press need coarse grounds to avoid over-extraction and sludge.
What grind size is best for pour-over or V60?
A medium grind, roughly the texture of table salt, gives balanced extraction for pour-over methods like the V60 and Chemex.
Does grind size affect how strong coffee tastes?
Yes. Finer grinds extract more and taste stronger and more bitter; coarser grinds extract less and can taste weaker or sour. Adjust grind first when dialling in any brew.
Can I use one grind size for every brewing method?
No — each method keeps water in contact with coffee for a different length of time, so each needs its own grind. Matching grind to method is the key to a consistently good cup.
