Last updated 10 August 2026
Is there such a thing as a decaf coffee bean? Yes. Decaf is ordinary coffee that has had the caffeine taken out of the green bean before roasting, so what arrives is a whole roasted bean you grind yourself, exactly like any other coffee. What decides whether it tastes good is the decaffeination method, the roast, the origin, and how long ago it was ground.
Decaf spent forty years living down a reputation it earned in the 1980s, when the stuff on the shelves genuinely was grim. That version still exists. So does Great Taste Award-winning decaf. The problem was never the bean, it was what people used to do to it.
This guide runs through the decisions in the order you actually make them. Our own range sits in Decaf Coffee, Definitely if you want to look while you read.
Is there such a thing as a decaf coffee bean?
Yes. Every decaf coffee starts as a real coffee bean. The caffeine is removed while the bean is still green and unroasted, then the bean is roasted, packed and sold like any other coffee. There is no caffeine-free coffee plant and no synthetic substitute involved. You can buy decaf as whole beans, ground, in coffee bags or in pods.
The question gets asked because supermarkets stock decaf mostly as ground and instant, so people reasonably conclude the beans don't exist. They do. Our own decaf collection runs 13 products and three are whole bean: a 227g medium roast, a 227g dark roast and a 1kg bag.
Are decaffeinated coffee beans any good?
The good ones are very good. Quality in decaf tracks what it tracks in caffeinated coffee: the green bean you start with, a process that doesn't strip flavour out with the caffeine, and a roast chosen for the bean rather than to cover it up. Get those right and a proper decaf doesn't announce itself in a blind cup.
Our Definitely Decaf is a Great Taste Award winner, and across the range it sits at 4.8 out of 5 from 84 Judge.me reviews. Both are checkable before you spend anything, which is more than most supermarket decaf offers.
Where decaf earns its bad name is the cheap end, where a commodity green bean gets hammered with a solvent and roasted dark enough to hide what's left. That coffee is bad because it was bad coffee to begin with.
Whole bean or ground?
Buy whole decaf coffee beans if you own a grinder. A roasted bean holds its aroma compounds inside its own pore structure, and grinding opens that structure to the air all at once.
In practice, the aroma you smell coming off a freshly opened bag of ground coffee is aroma that has already left. Grind 12g at a time and it goes into the cup instead of the kitchen.
Buy ground if you don't own a grinder and aren't about to. A well-packed ground decaf beats a badly ground whole bean every time, and our decaf ground coffee is ground for the brew method named on the pack rather than to one all-purpose setting. There's no moral high ground in owning a grinder. Just a slightly better cup.
How the decaffeination method changes what's in your cup
Two families of method, and the difference is what does the extracting.
Swiss Water Process: water only
Swiss Water uses water, temperature and time. Green beans are circulated in a caffeine-free green coffee extract, caffeine moves out of the bean by diffusion, and carbon filters strip the caffeine from the water so it can go round again. Swiss Water guarantee no chemical solvent is added at any stage, and that the green coffee leaves the process 99.9% caffeine free.
Every coffee in our decaf range is Swiss Water. Long version in our Swiss Water Process guide, short version on our Swiss Water decaf page.
Solvent methods: legal, regulated, not the same
The alternative is a solvent. Three are named for coffee decaffeination in Schedule 6 of the Extraction Solvents regulations, in force since the end of 2022, each with a residue cap in milligrams per kilo of roasted coffee. That schedule covers England, and the Scottish regulations carry matching entries.
So a solvent decaf sold legally here is a regulated product with a residue ceiling. Ethyl acetate, usually sold as a sugarcane process, sits in the all-uses table rather than the coffee-specific one. None of this is a health scare and we won't pretend it is.
We chose water for taste. Solvents are less selective than water, and the flavour compounds sitting next to the caffeine tend to leave with it. Full comparison here: Swiss Water vs solvent decaf.
How much caffeine is left in decaf coffee beans?
Single-digit milligrams. The European Food Safety Authority worked on 21mg per litre for decaf in its 2015 caffeine assessment, about 4mg in a 200ml cup, using data from France's food safety agency ANSES. The US FDA puts the spread across decaf products at 2 to 15mg per 8fl oz cup, Harvard's Nutrition Source estimates about 4mg, and our own figure for a Swiss Water cup is 2 to 7mg. A regular brewed cup sits around 95mg, and EFSA's comparison figure for a 200ml filter coffee is 90mg. The number the roasted-decaf trade works to is 0.10% caffeine of dry matter, which is 99.9% caffeine free by weight.
Every one of those estimates says the same thing: a decaf cup is a rounding error next to a coffee. Full numbers in how much caffeine is in a decaf coffee, and if the reason you're here is the 4pm cut-off, read decaf coffee and sleep.
Roast level, origin and blends
Which roast level suits decaf?
Decaffeinated green beans arrive at the roaster already darker than untreated ones, and in our experience they take heat faster, so a decaf tips into bitter sooner. A medium roast is the safest buy and shows the origin. A dark roast suits milk drinks and bean-to-cup machines, because the body carries through.
Our 227g medium roast beans give dark cocoa and walnut with a clean finish. The dark roast is the same Colombian bean taken further.
Single origin or blend?
Single origin tells you where the coffee came from, so you can taste one thing and know what you liked. Every Definitely Decaf is single origin, mostly Colombian from Quindío, plus Brazilian, Peruvian, Sumatran and Costa Rican in the ground range.
Blends exist to hold a flavour steady across seasons, which is a real job and not a lesser one. For decaf, single origin has the edge: if a cup tastes flat you want to know whether it was the bean or the process. A blend hides that.
What decaf coffee beans cost per cup
Price per bag is the wrong number. Price per cup is the number, and at a proper 12g dose it comes out like this.
| Product |
Price |
Size |
12g doses per pack |
Per cup |
| Definitely Decaf 227g beans, medium or dark |
£7.49 |
227g |
18.9 |
39.6p |
| Definitely Decaf 1kg beans |
£29.99 |
1000g |
83.3 |
36.0p |
| Definitely Decaf 200g ground, Colombian |
£6.75 |
200g |
16.7 |
40.5p |
| Definitely Decaf Perfect Pods, box of 10 |
£4.00 |
10 pods |
10 |
40.0p |
| Definitely Decaf bean bags, box of 10 |
£5.39 |
10 x 12g |
10 |
53.9p |
| Definitely Decaf Peruvian Fairtrade Organic 200g ground |
£10.99 |
200g |
16.7 |
65.9p |
Two things fall out of that. The 1kg bag comes in 3.6p a cup under the 227g, and buying a kilo in 227g bags would cost £33.00 against £29.99, so the big bag saves £3.01 and is only worth it if you'll drink it inside a month. The single-origin grounds at 65.9p aren't there to be cheap, they're there because a Peruvian Fairtrade Organic tastes different from a Colombian.
How to spot a quality decaf
Three signals, all of them checkable before you buy.
Awards. A Great Taste Award is the signal worth looking for on a decaf pack. Ours has one.
Published ratings with a review count. A 4.9 from six reviews tells you nothing. Ours is 4.8 from 84 across the Definitely Decaf range, and every one is on the product page.
Named process, named origin. If a pack says "decaffeinated" and nothing else, the seller has decided you don't need to know. A pack that says Swiss Water Process, Quindío, Colombia has committed to something you can check.
What are the best decaf coffee beans in the UK?
For whole bean specifically, look for three things together: Swiss Water or another water-based process, a single origin you can name, and a roast date rather than a best-before. In our range that's the 227g medium roast for filter and cafetiere, and the 1kg bag for bean-to-cup machines and espresso. The whole Swiss Water decaf collection is 13 products deep. For how the beans stack up against bags, ground and pods, see the best decaf coffee UK roundup.
What is the best tasting decaf coffee bean?
The best tasting decaf bean is a washed Colombian Arabica, medium roasted, decaffeinated with water rather than solvent. Colombia's altitude and washed processing give a clean, sweet cup with enough body to survive decaffeination. Our medium roast Quindío bean tastes of dark cocoa and walnut with a creamy body.
Which decaf should you buy?
| You want |
Choose |
| The freshest cup possible, and you own a grinder |
227g whole beans, medium roast |
| Espresso or a bean-to-cup machine |
227g dark roast, or the 1kg bag |
| The lowest price per cup |
1kg whole beans, 36.0p |
| No grinder, cafetiere or filter |
200g ground Colombian |
| Something different to taste against |
Peruvian Fairtrade Organic or Sumatran ground |
| A campsite, or a hotel room with a kettle |
Bean bags, 12g each |
| Coffee late in the evening without losing sleep |
Any of them, they're all Swiss Water |
Coffee at 9pm without paying for it at 2am is the point of that last row. That cup has a page of its own: Nightcap. It all lives in Decaf Coffee, Definitely, and if the campsite row is you, how coffee bags work explains the format, with the full line-up on the coffee bags hub. You could buy the 1kg bag, grind the lot on a Sunday and keep it in a biscuit tin on the radiator. We'd rather you didn't.
