WatchHouse runs its own Coffee Lab in South London; this is where you drink the output. Ask what single origin is on the bar, and order it rather than the view.

This is the original WatchHouse, the site the brand grew out of, still running the own-roastery programme that built its reputation for sourcing literacy.

This is the WatchHouse that actually makes the coffee, not just serves it, so what lands in your cup was cupped and roasted a few floors up.

Saturday mornings only, at the roastery where London's specialty coffee scene started. Drink on-site and treat Spa Terminus's wider artisan market as the rest of the morning.

One of the founding names of London specialty, still running the bean counter at Bermondsey where staff walk you through farm-level tasting notes before you buy. The retail experience here shaped what the city now takes for granted.

Urban Baristas roasts its own beans and pours them at this Bermondsey cafe, with single origins across the menu. The cafe is the retail face of a genuine roasting operation.

Behind the name is a working roastery in Somerset sourcing single-origin Arabica, served with tasting notes at the Bermondsey counter. The coffee is serious in a way the branding isn't.

Two espresso roast options and a barista who takes microfoam seriously. The pastries are worth staying for.

Monmouth on filter in a Maltby Street railway arch, with viennoiserie from their own bakery. Worth a stop for either.

Bar and brunch on Tanner Street, with a local-roaster espresso that earns its place without asking for attention. The food and atmosphere are the reason to come.