Blog
Coffee Strength: A Sensory Perspective
Jan
As we settle into a new year, we welcome new faces to the world of speciality coffee. Many will have unknowingly fallen down the coffee rabbit hole after receiving beans and brewing equipment as Christmas gifts.
The speciality coffee scene is full of flavour, filtration and experimental fermentations. It can also be a space of contradictory information and confusing terminology. With that in mind, our Head of Quality Control and Sensory, Will Greavner, has chosen to address one of the most common questions we hear from those new to speciality coffee: “How strong is your coffee?”
As the 2025 UK Cup Tasters Champion, Will brings both technical expertise and a practical, down-to-earth approach to coffee education, helping translate complex processes into clear, useful guidance.
In coffee, strength is a vague and often misleading term. It’s commonly printed on supermarket coffee bags, usually alongside a numerical scale meant to indicate how “powerful” a coffee will taste. In this context, strength might refer to the boldness of flavour or the darkness of the roast, but rarely to the caffeine content. In speciality coffee, we don’t use the word strength because it oversimplifies something that is far more nuanced.
Instead, we talk about intensity.
What Do We Mean by Intensity?
Intensity is how strongly a coffee expresses itself through the senses. This includes aroma, flavour, aftertaste, acidity, bitterness, and balance. These attributes are used in professional cupping and tasting to assess quality in a more structured and objective way.
A very intense coffee is often unbalanced. Meaning it may have one or two dominant characteristics that overshadow everything else, leading to a lack of harmony in the drinking experience. A low-intensity coffee, on the other hand, might be described as mild, balanced, or easy-drinking. Neither is inherently better; they are simply different experiences.
Many factors influence how intense a coffee tastes.
What Makes a Coffee Taste “Intense”?
Origin
A coffee’s origin and terroir can strongly influence its flavour profile and perceived intensity. For example, a washed Kenyan coffee is often bright, acidic, and packed with flavours like citrus and blackcurrant – qualities that can feel intense and vibrant. A washed Peruvian coffee, by comparison, might be softer and rounder, with notes of nuts, caramel, and chocolate.
Processing
The way the coffee is processed after harvesting also plays a huge role. Washed coffees tend to be cleaner compared to honey and natural coffees. The latter processing methods involve more fermentation, resulting in sweeter, heavier, and often more intense flavours.
Roast Profile
Roast level shapes intensity in a different way. Light roasts can feel intense due to their high acidity and bright aromatics. Medium roasts often sit in a more balanced middle ground, while dark roasts are intense in terms of bitterness, body, and smoky or roasted flavours.
Brew Method and Recipe
How you brew the coffee matters just as much as the coffee itself. A neat double espresso will always taste more intense than an 8oz filter coffee. A French press left to sit on its grounds for hours will become heavy, bitter, and overpowering.
Closing Comment & Our Recommendations
So when someone asks if a coffee is “strong,” the honest answer is: it depends. On the origin, the process, the roast, and how you brew it. There is no single dial marked strength that we can turn up or down. The best solution, as always, is simply to taste and discover what you enjoy.
If you tend to enjoy bold or full-bodied coffees, here are some good places to start:
- Espresso Blends such as the 4Bean, Artisan – Designed to shine in concentrated brewing, these are fuller-bodied and more intense by nature.
If you prefer something bright and lively instead:
- Kenya Washed – High acidity and juicy fruit flavours.
- Ethiopia Washed – Tea-like, creamy mouthfeel and medium body.
And if you’re after something gentler and easy-going: