Catalyst Exclusive Coffee
We are excited to announce a UK exclusivity on this coffee
Borboun Aruzi
Rare variety equals rare taste
Customer favourite
Loved for its stunning clarity, our single estate, wash processed Castillo creates a balanced, silky mouthfeel with a sweet fruity, milk chocolaty aftertaste.
Enhance its delicate complexity by enjoying it black or with milk, brewed either by filter or espresso.
Carefully curated to liven up your ritual
Explore every nuance
Our collection of coffees explore a diversity of production methods and roasting styles to bring creativity to your coffee ritual.
Curated for filter
Filter brews create waves of flavours that take you on a journey as the cup cools— with a distinct start, middle, and finish.
This collection balances acidity with sweetness to preserve the roast’s subtleties and form a vast body without overpowering notes.
Curated for French press
A French press infuses water and coffee with a bit of coffee oil plus tiny suspended pieces of coffee to produce a rich and textured cup.
Choose from a collection of delightfully bright beans to compliment the cup's deep richness for a silky, clean, and full-bodied brew.
Curated for moka pot
Moka Pots produce a bold often bitter cup treasured by many as the quintessential Italian café espresso.
To reduce overpowering the senses with bitterness, we've curated a selection of beans to withstand the intensity of the brew while preserving the ensemble of intricate flavours and aromas.
Curated for espresso
Even the finest coffees become overpoweringly acidic and bitter if mishandled, but with proper care and a supportive roast, be ready for an eye-opening experience.
This selection of coffee will bear a more pleasant bitterness and base notes, producing a full body and mouthfeel without sacrificing clarity of flavour.
Koffiracha Chilli Flame
Shop NowKoffiracha Chilli Flame™ is a mild hot sauce made from fruity single-origin coffee and ripe chilli peppers that blend into a tangy, creamy, spicy burst of flavour to fire up eggs, burgers, avocado toasts—anything to perfection.

You'll use a bottle per dish — seriously
Koffiracha Chilli Flame is on The Infatuation's radar as a condiment to douse over everything you make in the kitchen. Yes, especially on your eggs, trust us.

Hot or not
Choose a heat level from Non-Spicy, Spicy and Extra Spicy or get umami-packed heat with VTEC Coffee Sriracha.
Collab = Soul
Nurturing partnerships with creative souls — from chefs, artists, brands, creators — is our core philosophy at Catalyst.
Through our collaborative projects, we hope to liven up your world with London’s vibrant creative community.
Catalyst Coffee Roasters + Café
48 Grays Inn Road, Holborn
London WC1X8LT
Mon - Thu, 8am - 5pm
Fri 8am - 11pm
Sat-Sun Closed