"Monmouth on filter in a Maltby Street railway arch, with viennoiserie from their own bakery. Worth a stop for either."
Maltby St, London SE1 3PB, UK
WatchHouse Bermondsey is the production roastery, not a branded outpost. Rotating single origins on V60, Chemex, and Kalita, with tasting notes on the menu and beans to take home.
WatchHouse started at this address, and Bermondsey remains the version that takes the coffee programme to its logical conclusion. The filter is plural, serious, and worth planning around.
WatchHouse runs its own Coffee Lab in South London; this is where you drink the output. Ask what single origin is on bar and pick a brew method, not a view.