Havana's original microbrewery occupies a boisterous corner of Plaza Vieja and sells smooth, cold, homemade beer at sturdy wooden benches set up outside on the cobbles or in a bright, noisy beer hall. Gather a group together and you'll get one of three beer varieties (light, amber or dark) in a tall plastic tube with a tap at the bottom.
There's also an outside grill, but the food here plays third fiddle to booze and antics in the square.