How to choose coffee beans: six questions before you buy
Most "best coffee beans UK" lists pick ten or twenty bags. Some are tasted carefully, some earn a commission on every sale, and none can know whether you drink flat whites or filter coffee. Bean Index works the other way round: we show what every listed roaster sells, at the price the roaster charges, and no listing is for sale. Six questions get you from a long list to a short one.
1. How do you brew your coffee?
This matters more than origin or price. Espresso and bean to cup machines brew under pressure in about half a minute and suit roasts made for that; pour over, filter machines and AeroPress are gentler and show off lighter, brighter coffees. Many UK roasters say what a coffee is roasted for. "Omni" means the roaster thinks it works both ways.
Bean-to-cup rule: 266 coffees from 61 roasters
Where the roaster doesn't say, which is the case for 52% of coffees, a medium roast with chocolatey or nutty notes is the safest choice for most methods. To browse by method: espresso, filter and pour over, bean to cup machines, cafetière, AeroPress and moka pot. If you own a bean to cup machine, read which coffee beans suit a bean to cup machine first.
2. Fruity or chocolatey?
The tasting notes on the bag are the roaster's description, not a promise, but they sort coffees reliably into two broad camps: bright and fruity (berries, citrus, stone fruit) or rounder and darker (chocolate, nuts, caramel). Most people already know which camp they are in. The camps follow the brew method: of filter roasts whose notes we can place, 58% read fruity and bright, while 40% of espresso roasts read chocolatey and nutty (checked 19 Oct 2026).
If you take milk, chocolatey and nutty coffees hold up best. If you drink coffee black and like tea or wine, try something fruity, and don't confuse fruity with sour: fruity is not sour explains the difference. Browse by flavour: fruity, caramel and sweet, floral, or use the flavour finder.
3. Light, medium or dark roast?
Roast level is less useful than it looks, because "light" and "dark" mean something different at every roaster, and most roasters don't state it at all: only 25% of coffees on Bean Index carry a roast level (checked 19 Oct 2026). The brew method from question 1 tells you more. As a rule, lighter roasts taste brighter and more like their origin; darker roasts taste more of the roast itself, bitter chocolate and toast. Light and medium-light roasts have a median of £51/kg against £43/kg for the rest. More in light roast coffee: when is light really light?
4. Washed, natural or something wilder?
How the coffee cherry was processed after picking shapes the cup almost as much as where it grew. Washed coffees tend to be clean and crisp; naturals, dried in the whole fruit, are sweeter and often taste of berries. Anaerobic and other fermented coffees are bolder and divide opinion.
| Process | Coffees | Median per kg | Most common notes |
|---|---|---|---|
| Washed | 557 | £54 | Nut & caramel, Chocolate and Citrus |
| Natural | 427 | £52 | Nut & caramel, Chocolate and Berries |
| Honey | 77 | £55 | Nut & caramel, Chocolate and Stone fruit |
| Anaerobic | 105 | £68 | Tropical & winey, Berries and Nut & caramel |
If you are new to speciality coffee, a washed or natural coffee from a well-known origin is the easy start. The difference between the two is explained in natural vs washed coffee. Some coffees are "infused" or co-fermented with fruit or spices during processing; they cost more (median £88/kg) and taste of what was added, so check the roaster's description if you want coffee that tastes only of coffee.
5. What should good coffee beans cost?
Compare the price per kilo, not the price per bag: bags come in many sizes. On Bean Index, the middle half of speciality coffees costs between £43 and £60 per kilo; blends have a median of £44/kg and single origins £54/kg. Per cup, the beans for a filter coffee with 15 g cost about £0.76 at the median price.
A higher price usually buys a rarer variety, a smaller lot or an unusual process, not automatically a cup you will like more. Every coffee page shows where its price sits within its group. More in how much should coffee beans cost per kg?, affordable espresso beans and supermarket vs speciality coffee.
6. How fresh will the coffee be?
Whole beans keep their aroma for a few weeks after roasting, then fade, so freshness matters more than almost anything else on this list. Look for a roast date on the bag rather than only a best-before date; many independent UK roasters print one or roast to order. Buy whole beans if you have a grinder, and buy what you will drink within a few weeks. The most common bag is 250 g, enough for about 16 filter cups or 13 double espressos. Each roaster's page on Bean Index shows what the roaster says about roasting and dispatch days, where it says so; see the list of UK roasters.
Hard water also changes how coffee tastes, especially in London and the south-east: see water for coffee. If you drink decaf, the method matters as well: decaf coffee beans and Swiss Water vs sugarcane decaf.
A short checklist
- The roaster names your brew method, or the coffee is an omni roast.
- The tasting notes are in the camp you enjoy: fruity and bright, or chocolatey and nutty.
- The bag names at least the country and the process; ideally the region, farm or variety too.
- The price per kilo is in your range; compare like with like (blend with blend, single origin with single origin).
- There is a roast date, or the roaster roasts to order, and the bag size matches how much you drink.
The catalogue lets you filter by all of these at once, and the compare view puts two or three coffees side by side.
Coffees with the most complete roaster information
Origin CoffeePorthleven, UK
Arsosala
Ethiopia, Uraga, 1,800–1,900 m
Washed, Ethiopian Landrace
Floral & tea, Citrus, Berries
Espresso roast
Price per kg £58.80/kg
£14.70 for 250 g, excl. delivery, checked
around the median for Washed from Ethiopia
To roasterOutpost CoffeeNottingham, UK
BROKEN PROMISE 001 / 72hr Anaerobic Natural / Uganda
Uganda, Mt. Elgon, 1,900 m
Natural (anaerobic), SL28, SL34
Citrus, Tropical & winey, Stone fruit
Omni roast
Price per kg £80.00/kg
£16.00 for 200 g, excl. delivery, checked
77% above median for Natural from Uganda
To roasterOvenbird CoffeeGlasgow, UK
Ethiopia Yirgachefe G1 Chelelektu
Ethiopia, Yirgacheffe, 1,800 m
Natural, Ethiopian Landrace
Floral & tea, Tropical & winey
Omni roast
Price per kg £42.00/kg
£21.00 for 500 g, excl. delivery, checked
Ozone Coffee UKStafford, UK
Bolivia: Arcangel, Dry Fermented Washed
Bolivia, Caranavi, 1,500 m
Washed, Caturra, Catuai
Citrus, Berries, Chocolate
Omni roast
Price per kg £58.86/kg
£12.95 for 220 g, excl. delivery, checked
7% above median for Washed
To roasterPharmacie Coffee RoastersLewes, UK
Carlos Mejia, Honduras
Honduras, La Paz, 1,450 m
Natural, Catuai
Tropical & winey, Nut & caramel
Filter & espresso roast
Price per kg £48.00/kg
£12.00 for 250 g, excl. delivery, checked
15% below median for Natural from Honduras
To roasterPoblado CoffiNantlle, UK
Guatemala - Primavera Family
Guatemala, Huehuetenango, 1,550–1,650 m
Washed, Caturra, Catuai
Chocolate
Omni roast
Price per kg £38.00/kg
£9.50 for 250 g, excl. delivery, checked
28% below median for Washed from Guatemala
To roasterOrdered by how much the roaster tells you, with roasters taking turns each day; this is not a ranking. How we sort · All coffees
What we don't know
- How a coffee tastes. Flavour notes are the roaster's words, read by AI from the roaster's description; we don't taste or score coffees.
- How fresh your bag will be when it arrives. We see what the roaster publishes, not the date on the bag in the warehouse.
- The roast level of most coffees: 75% of coffees on Bean Index don't state one.
- Coffee from roasters we don't list yet, and supermarket coffee, which Bean Index does not cover.
Sources & method
- All figures: coffees on sale from 111 UK speciality roasters, from the roasters' own shops, checked 19 Oct 2026. Prices excl. delivery; price per kg from the standard bag, n = 1,370. Details in the methodology.
- Brew method and roast level: as stated by the roaster (shop field, product text or AI reading of the description), never inferred from origin or price. See methodology.
- Flavour camps: tasting notes grouped into fruity, balanced and chocolatey, as described in the methodology.
- Per cup: price per kg times grams per cup, divided by a thousand.