Catalyst

Best for: Espresso Dark roasts
Updated 7 June 2026 Website
Catalyst — coffee roaster

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What Catalyst Coffee Tastes Like

Catalyst's range balances bright citrus and floral notes with deeper caramel sweetness, anchored by occasional hints of cherry, hazelnut, and dark chocolate.

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About Catalyst

Catalyst roasts with a clear preference for sweetness and fruit, ranging from vivid tropical profiles — ripe mango, lychee, watermelon — through to darker, more grounded cups built around stone fruit, chocolate, and caramelised sugar. The range sits mostly in the expressive, process-forward end of the spectrum, with fermented and floral notes appearing alongside more approachable caramel and ganache characters. It's a varied but coherent lineup, well suited to those who enjoy coffee with presence and definition rather than subtlety.

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Catalyst — Frequently Asked Questions

What does Catalyst coffee taste like?
Catalyst coffees are known for Citrus, Floral, and Caramel notes. These characteristics appear consistently across their range of 8 roasts.
Does Catalyst offer decaf coffee?
Catalyst does not currently have any decaf roasts listed on Gourmet Coffee London.
What types of coffee does Catalyst offer?
Catalyst offers Omni and Espresso roasts. Browse their full range of 8 roasts on this page.