"Redemption Roasters trains baristas inside prisons and roasts its own beans; your espresso here is doing real work. One of the few specialty-first stops in Covent Garden."
40 Drury Ln, London WC2B 5RR, UK
Kiss the Hippo roasts their own, and the baristas at the Covent Garden branch are the kind who steer you toward the single origin before you've finished asking.
WatchHouse roasts at the South London Coffee Lab and the Covent Garden room is where you access it: single origins with flavour cards, tasting flights at the bar, and baristas who can account for what's in the cup.
Monmouth built what became London's specialty coffee template before most of the city caught up, running direct farm relationships since the beginning. The original. Still worth the queue.