Theo Marsh
"Great coffee isn't magic. It's discipline, repeated a thousand times."
Head Barista & Roaster — competition-level extraction nerd, allergic to inconsistency.
Precision espresso, single-origin filter and nothing left to chance. CONCRETE N°4 treats coffee like an exact science.
CONCRETE N°4 was designed by baristas who think in grams and seconds — every extraction logged, every bean weighed.
The space is bare concrete on purpose. Nothing to distract from the cup in front of you.
"Great coffee isn't magic. It's discipline, repeated a thousand times."
Head Barista & Roaster — competition-level extraction nerd, allergic to inconsistency.
"Most consistent cup of coffee I've had anywhere in London. Every single time."
"The cupping flight completely changed how I think about coffee origins."
"Minimal, quiet, and the coffee backs it up. Exactly what I want from a coffee bar."
Wholesale enquiries, private cuppings or general questions — reach out below.