Is an Arabica blend really the best for espresso?

The statement you often hear

“An Arabica blend is best for espresso.”

It's a statement you encounter regularly—in coffee shops, online forums, and during workshops. But is it actually true? Or is the answer more nuanced than often thought?

The short answer: no, not necessarily .
You can read the longer answer below.

Arabica and Robusta: what's the real difference?

When discussing espresso, Arabica is often considered "the better bean." This perception is understandable, but incomplete. Both bean varieties have their own characteristics and uses.

Arabica

• About 1.5% caffeine
• Milder, softer taste
• More natural sugars
• Clear flavour profiles with recognisable aromas and notes
• Generally less bitterness and sharpness

Arabicas are ideal for coffees where complexity, balance and nuance are important.

Robusta

• About 3% caffeine
• Powerful, intense flavour
• Less sugar
• More earthy, smoky and bitter notes
• Provides extra body and a thicker crema

Robusta is often wrongly dismissed as “inferior coffee”, while it can actually be functional — especially with espresso.

Why “best for espresso” is mostly about roasting

What many people forget is that espresso is not just about the bean type, but especially about the roast .

Light roast

• Short surf
• Much preservation of original flavors
• Few oils and fats
• More acids, less body
  ➡️ Suitable for pour-over, filter and cold brew

Medium roast

• Medium-length surf
• Balance between flavor notes and fats
• Broad applicability
  ➡️ Suitable for both filter coffee and espresso

Dark roast

• Longer branding
• Less original notes
• More oils and fats
• Thicker mouthfeel, more powerful extraction
  ➡️ Ideal for espresso machines

For espresso, fats, solubility, and extraction behavior are crucial — and these are largely determined by the roast.

Why espresso blends work so well

Many espresso coffees aren't single-origin, but blends . This is no coincidence.

An espresso blend:

• Combines coffee from several countries
• Designed for consistency
• Provides a balance between sweet, bitter, body and crema
• Can combine Arabicas with a small amount of Robusta

Especially with dark roasts, this ensures a stable, full and accessible espresso profile.

So what's the best choice? It depends on your goal.

Recommendation for espresso machines

• Espresso blend
• Medium to dark roast
• Possibly with a small percentage of Robusta
• Focused on body, intensity and crema

Brewing Method Recommendation

• Light to medium roast
• Single origin (one country)
• More focus on specific aromas and flavor layers
• Less fat, more clarity

Conclusion

An Arabica blend is not automatically the best choice for espresso.

The real quality is in:

• The surf
• The composition of the blend
• The brewing method
• And most importantly: your taste preference

Espresso isn't a fixed recipe, but a combination of choices. And that's precisely what makes coffee so interesting.