Coffee tasting notes explained: what "blackcurrant, oak" actually means

Every bag of decent coffee has a line on it that sounds faintly ridiculous. Blackcurrant, dark chocolate, oak. Jasmine and stone fruit. Toffee, almond, a hint of tobacco.

The reasonable reaction is that somebody in marketing has been let off the leash. It is not. Nothing has been added to the coffee, and the person who wrote that line was describing what they genuinely tasted. Once you know how those descriptions are built, they stop being decoration and become the most useful thing on the bag.

Why coffee tastes of things that are not coffee

Roasting a coffee bean sets off a cascade of chemical reactions — Maillard browning, caramelisation, and the breakdown of acids and sugars. Somewhere north of 800 distinct aromatic compounds have been identified in roasted coffee. That is a genuinely enormous number; wine has fewer.

A good proportion of those compounds are not unique to coffee. They are the same molecules that appear in other foods. Coffee produces furaneol, which is a large part of why strawberries smell like strawberries. It produces guaiacol, which is what makes smoked food smell smoked. It produces damascenone, a compound found in roses and in cooked apple.

So when a roaster writes blackcurrant, they are not being fanciful and they are not reaching. Your nose is detecting a compound it has learned to associate with blackcurrant, because it is in fact the same compound. The coffee genuinely smells of it.

This also explains why the notes are so varied. Which compounds develop depends on the variety of the plant, the altitude it grew at, how the cherry was processed after picking, and how far the roast was taken. Change any of those and you change the aromatic profile.

The vocabulary, translated

Most tasting notes are built from four things, and only one of them is about flavour.

Term	What it actually describes	Plain version
Acidity	Perceived brightness and liveliness	Sharp and clean, like a crisp apple — not sour
Body	Physical weight in the mouth	Skimmed milk versus whole milk
Sweetness	Perceived sugar, without any sugar	Whether it needs sugar or does not
Finish	What is still there after you swallow	Short and clean, or long and lingering
Balance	Whether the above work together	Nothing sticking out awkwardly

Then come the flavour descriptors themselves — the blackcurrant, the oak, the toffee. Those get grouped into families, and the families are more useful than the individual words:

• Fruity and floral — usually a light roast, usually African in origin, usually higher acidity.
• Nutty, caramel, chocolate — usually medium roast, usually Central or South American.
• Dark chocolate, smoke, spice — usually a darker roast, where you are tasting the roast more than the origin.
• Earthy, herbal, tobacco — often Indonesian, and often a marmite profile: people either love it or do not.

That mapping is the genuinely practical bit. If you already know you like a coffee described as caramel and almond, you can predict fairly reliably that you will get on with one described as toffee and hazelnut, and that you may not enjoy one described as jasmine and bergamot. The notes are a compatibility guide.

Acidity is the word that causes all the trouble

If one term deserves rescuing, it is this one.

In coffee, acidity means brightness. It is a positive quality. A coffee with good acidity tastes lively, clean and refreshing — the way biting into a good apple is refreshing. Ethiopian and Kenyan coffees are prized for it.

What most people mean when they say a coffee is too acidic is that it tastes sour and thin and slightly hollow. That is not acidity in the tasting sense. That is under-extraction: the water has not pulled enough out of the grounds, so you are getting the acids that dissolve first without the sugars that follow. It is a brewing fault, and the fix is a finer grind or a longer brew, not a different coffee.

They are opposites, confusingly. Pleasant acidity is a property of the bean. Unpleasant sourness is something you did.

Why you might not taste any of it

If you have read the notes on a bag and got nothing, one of three things is usually going on.

You are over-extracting. Bitterness is loud, and it will flatten everything underneath it. It is very hard to detect stone fruit through a cup that is fundamentally too bitter. Fix the extraction first, and the notes will often appear on their own.

The coffee is stale. Aromatics are volatile — that is the definition of an aromatic. They leave. A coffee two months past its roast date has lost a large share of what the tasting notes describe. What is left is the heavier, duller stuff. This is the single biggest reason supermarket coffee tastes broadly the same as itself regardless of what the bag claims, and it is why we roast to order. Storing it properly buys you some of that time back — see how to store coffee beans.

You are new to it, and that is completely fine. Tasting is a trained skill, not a talent. Nobody arrives able to pick jasmine out of a cup. The useful thing is that it trains fast.

How to actually train your palate

Four things, none of which require any equipment.

Taste two coffees side by side. This is the big one. Detecting a flavour in isolation is hard; detecting a difference is easy. Brew a light roast and a dark roast the same way and taste them one after the other, and the distinction between origin character and roast character will be obvious immediately. You will learn more in that one sitting than in a month of drinking one bag.

Smell the dry grounds. Grind the coffee and put your nose straight in before any water touches it. The aromatics are at their most concentrated and least confused at that point. Most people find the notes far easier to identify dry than in the cup.

Drink it as it cools. Hot coffee is dominated by volatile aromatics and by the heat itself. As it comes down through about 60°C, sweetness and fruit become much more legible. Professional cuppers taste across a temperature range for exactly this reason. If you have only ever drunk coffee scalding, you have not really tasted it.

Do not chase the exact word. If the bag says blackcurrant and you get “some kind of dark berry”, you got it. The specific word is one person’s best attempt at a shared vocabulary for something genuinely difficult to name. Family right, word wrong, is a success.

What this means for choosing a bag

Read the notes as a prediction rather than a promise.

Fruit and floral words mean brightness and a lighter body — brilliant through a V60 or a filter, a bit delicate under a lot of milk. Caramel, nut and chocolate words mean balance and reliability, and they suit almost any method. Smoke, spice and dark chocolate mean weight and low acidity, which is what stands up in a flat white.

Across our own range, Morning Roundup sits at the bright end, Campfire Blend is the balanced middle, and Whiskey Creek is where the smoke and depth live. If you would rather answer a few questions than read six descriptions, find your coffee does the same job in about a minute.

The notes are not marketing. They are the roaster telling you what is in there. It is worth learning to read them.