A craft-beer bar on Calle San Sebastián with around 50 rotating taps — heavy on Puerto Rican and Caribbean microbreweries with a strong supporting list of US and Belgian beer. The space is a long narrow former townhouse with the bar running its length; the front opens to the street.
The kitchen does decent pub food (loaded fries, sliders, a respectable burger), and the staff knows the taps well enough to talk you through a flight if you ask. Lúpulo is the obvious choice if you want a quieter, more grown-up drink than the surrounding Calle San Sebastián bar scene.