Coffee Laboratory

Coffee, measured not guessed.

Precision espresso, single-origin filter and nothing left to chance. CONCRETE N°4 treats coffee like an exact science.

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Brutalist concrete coffee shop interior
Concrete architecture coffee bar counter
Method

Built like an instrument.

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.

Lab Notes

Current Extractions

V60 pour over coffee brewing
Filter

V60 Pour Over

Nitro cold brew coffee glass
Cold Extraction

Nitro Cold Brew

Espresso shot pulling closeup
Espresso

Single Origin Espresso

Head barista portrait concrete background
Head Barista

Theo Marsh

"Great coffee isn't magic. It's discipline, repeated a thousand times."

Head Barista & Roaster — competition-level extraction nerd, allergic to inconsistency.

Reviews

Field Reports

★★★★★

"Most consistent cup of coffee I've had anywhere in London. Every single time."

Owen R.Regular
★★★★★

"The cupping flight completely changed how I think about coffee origins."

Naz K.Coffee Enthusiast
★★★★★

"Minimal, quiet, and the coffee backs it up. Exactly what I want from a coffee bar."

Freya B.Local Guide
Hours

Lab Hours

Mon — Fri7:30 – 17:00
Saturday8:30 – 16:00
SundayClosed
CONCRETE N°4
14 Bankside, London
Contact

Send A Message

Wholesale enquiries, private cuppings or general questions — reach out below.