This is an espresso blend combining coffees from Mexico and Colombia. The Mexico Huipil component is from the highlands of Oaxaca, shade-grown by Mazatec families at 1600-2000 meters altitude, featuring Typica and Bourbon varieties processed with washed method. The Colombian component is from Huila at 1700-1900 meters altitude, grown by women farmers, featuring Castillo, Bourbon, and Tabi varieties, also washed processed. The blend offers flavor notes of dark chocolate, cherry, and demerara sugar, with red fruit brightness, citrus, and steady sweetness.
Catalyst Coffee was founded in late 2016 by Alexander Gkikas in Holborn, London. The roastery operates a 12kg Diedrich housed in the basement beneath the café, visible to customers through glass floor panels. After initially adopting an omni roast principle with a single profile for all brewing methods, the team switched to two distinct profiles for espresso and filter based on customer feedback. Direct trade offerings include Finca La Lomita from Colombia's Valle del Cauca, where no chemicals, fungicides, or herbicides are used. The café serves espresso, batch brew, and pour over, and was named among 11 London coffee shops recognised as the best in the UK for 2026.