TLDR: Filter coffee and espresso require different grind sizes, not necessarily different brands of coffee. Filter coffee uses a coarser grind and a long, pressure-free extraction of 3 to 5 minutes; espresso uses a fine grind and a short, powerful extraction under high pressure. For filter coffee, Straight Up, Lush Bloom, and Daily Grind (ground) are the best choices at Bunafide; for espresso and automatic machines, Full Force and Bold Move are recommended. Most coffee beans are suitable for both methods, provided you adjust the grind size.
You're in the kitchen with a bag of coffee beans and two options: the filter or the espresso machine. If you just grab the same beans, you run a good chance of getting watery filter coffee or an espresso that tastes bitter rather than full-bodied. The difference isn't in "better" or "worse" beans, but in how long the water is in contact with the coffee and under what pressure that happens. This, in turn, determines which grind and roast work best.
In this blog, we explain the difference between filter coffee and espresso brewing, what that means for your bean choice and grind size, and which coffee from the Bunafide range best suits each method.
What is the difference between brewing filter coffee and espresso?
The core difference lies in extraction time and pressure.
For filter coffee, water flows through ground coffee for three to five minutes, without pressure. This is a slow, gentle process where flavors are gradually released. Because the water has a long time, a coarser grind is sufficient: finely ground coffee would quickly over-extract and become bitter with such a long extraction time.
With espresso, the opposite happens. Water is forced through the coffee under high pressure (around 9 bar) in just 25 to 30 seconds. To extract enough flavor in that short time, the coffee must be finely ground so that the water has less room to flow through unimpeded.
This difference in extraction time is why the same beans with the same grind rarely work for both methods. Too coarsely ground for espresso yields a thin, sour cup because the water rushes through too quickly. Too finely ground for filter coffee yields an over-extracted, bitter result because the water "lingers" too long in fine particles.
Which grind size goes with which method?
- Filter coffee: medium-coarse grind, similar to coarse sea salt
- Cafetière / French press: coarse grind, similar to breadcrumbs
- Espresso: fine grind, similar to table salt or finer
- Automatic machine: usually factory setting fine to medium-fine, depending on the machine
If you have a grinder at home, this is the first setting to check before drawing conclusions about the quality of your coffee. A good product with the wrong grind size will always give a disappointing result, no matter how good the beans themselves are.
Which coffee beans are suitable for filter coffee?
Filter coffee reflects the flavor of the bean relatively purely, as there is no pressure or fat (crema) involved. This makes the method suitable for coffees with a brighter, more layered flavor profile, where fruity or floral notes come into their own.
Within the Bunafide range, Daily Grind is specifically intended for this: this ground coffee is set to filter coffee by default, with a full flavor and mild finish. If you want to grind beans yourself for filter coffee, Straight Up is a logical choice: a medium roast that works with all brewing methods, including filter, with a strong and slightly nutty profile.
For those who prefer a more pronounced, fruitier profile through the filter, Lush Bloom is worth considering. The spicy, fruity, and slightly bitter notes emerge better with the slow extraction of filter coffee than with espresso, where those same nuances can disappear in the intensity of the preparation.
Which coffee beans are suitable for espresso?
Espresso requires beans that can withstand a higher extraction intensity without becoming predominantly bitter. Darker roasted beans with a full body and lower acidity generally work better here, as the short, powerful extraction already brings out a lot of flavor in a short time.
Full Force within the range is specifically developed for espresso and automatic machines: a dark roast with 50% Arabica and 50% Robusta, chocolate and roasted nuts, and a long, intense finish. The combination with Robusta ensures extra crema, which is often harder to achieve with pure Arabica espressos.
Also Bold Move (dark roast, 100% Arabica, coffee strength 4.5/5) lends itself well to espresso, with a slightly softer finish than Full Force but still enough body not to disappear under the pressure of the espresso machine.
What if you have an automatic machine?
An automatic machine essentially takes over the grinding and brewing, but the underlying logic remains the same as with espresso: the machine forces water under pressure through finely ground coffee. Most automatic machines have a built-in grinder that is set to a fine to medium-fine grind by default, similar to what you would use for espresso.
This means that beans that work well for espresso usually also work well in an automatic machine. Full Force is a direct match here, as this coffee is explicitly developed for espresso and automatic machines. Straight Up and Bold Move, both suitable for all brewing methods, also function perfectly in an automatic machine, albeit with a slightly less pronounced crema than Full Force due to the absence of Robusta in the composition.
If you have an automatic machine with adjustable grind size, the same advice applies as with a separate grinder: too coarse a setting yields a thin, under-extracted coffee, while too fine a setting can clog the machine or result in a bitter, over-extracted taste. If you have complaints about the taste, the grind setting is often the first place to look before concluding that you don't like the beans.
Can you use the same beans for both methods?
Yes, with one condition: you adjust the grind size. Most Bunafide coffee beans (including Straight Up, Bold Move, Lush Bloom, Mellow Mood, Super Nova, and Hyper Charge) are suitable for all brewing methods, including filter and espresso. This does not mean that every bean will perform equally well with every method, but it does mean that it is technically possible without losing flavor due to using the wrong bean.
If you only have one grinder and want to brew both filter coffee and espresso with the same bag of beans, set the grinder coarser for filter and finer for espresso. Store the beans in an airtight container, preferably not in the refrigerator, to prevent oxidation between brews.
This does not apply to ground coffee: it has already been ground to one specific size and cannot be adjusted. Daily Grind and Easy Does It are both ground for filter coffee and are not suitable for espresso.
Which Bunafide coffee do you choose? Overview per method
| Brewing Method | Recommended Coffee | Why |
|---|---|---|
| Filter coffee (beans) | Straight Up | Medium roast, all brewing methods, strong and nutty |
| Filter coffee (beans, fruity) | Lush Bloom | Fruity, floral notes come out well with slow extraction |
| Filter coffee (ground) | Daily Grind | Standardly adjusted for filter coffee |
| Espresso | Full Force | Specifically developed for espresso and automatic machines, extra crema due to Robusta |
| Espresso (softer) | Bold Move | Dark roast, full body, suitable for espresso |
| Decaf, filter or espresso | Still Kicking (beans) / Easy Does It (ground) | Both 100% Colombian, all brewing methods suitable for the bean variant |
Frequently Asked Questions
Can I make filter coffee with espresso beans?
Yes, provided you set the grind coarser. Espresso beans are often darker in roast profile, resulting in a more intense, less acidic filter coffee than with lighter roasted beans.
Why does my espresso taste bitter while the filter coffee from the same beans was fine?
Almost always due to the grind size. If you use the same (too coarse) grind for espresso as for filter, the water will rush through the coffee too quickly, resulting in an under-extracted, often sour to bitter taste. Set the grinder finer.
Is Full Force also suitable for filter coffee?
Technically yes, with a coarser grind, but the dark roast and high intensity are primarily developed for espresso. For filter coffee, Straight Up or Daily Grind would provide a more balanced result.
Does this explanation also apply to decaf varieties?
Yes. Still Kicking and Easy Does It follow the same logic as their caffeinated counterparts: Still Kicking (beans) is suitable for all brewing methods, including filter and espresso with the correct grind size, while Easy Does It (ground), like Daily Grind, is pre-ground for filter coffee.
