Worker-Owned Brooklyn Bakery Puts Naturally Leavened Focaccia at Its Heart

The focaccia at Sea & Soil is not a vehicle for toppings. It is the point of the whole operation.

The worker-owned bakery and sandwich shop, established in 2023, opened its permanent home at 388 Atlantic Avenue in Boerum Hill on March 29, completing a transition from a smaller space on President Street. The Brooklyn Bridge Parents neighborhood roundup flagged the opening on March 26 as part of a broader wave of new food businesses across Brooklyn this month.

Sea & Soil operates as a co-op, worker-owned and structured to keep profits in the hands of the people doing the labor. Its menu runs on naturally leavened bread baked entirely in-house, spanning sourdough, potato-rosemary, olive, whole grain, sesame-arbol, and a Rosemary-Chile focaccia. Every condiment, spread, and pickle in the shop is made on-site, with ingredients sourced locally.

The focaccia is the centerpiece. Named sandwiches including The Lucy, built on smoked trout, fermented pepper jam, pickled red onion, radish, and aioli, and The Isaac, a vegan option with cumin-paprika roasted tofu and aji verde, are all served on S&S Focaccia. The bread is naturally leavened, which means the open crumb and crust it produces reflect extended fermentation that commercial yeast cannot replicate.

For home bakers, Sea & Soil is the kind of place that makes the effort tangible. Tasting naturally leavened focaccia in a setting where it has been calibrated to carry fermented condiments, pickled vegetables, and roasted proteins gives a practical benchmark that videos and cookbooks cannot fully convey. Salt balance, crumb structure, and crust tension are all legible in context here.

The co-op prices its sandwiches on a sliding scale of $10 to $18, a model designed to keep quality bread accessible across income levels. The team also invited the Boerum Hill community to contribute mixtapes, CDs, and vintage records to stock the new shop's music collection, a detail that reflects the neighborhood institution Sea & Soil is working to become.

The move to Atlantic Avenue is the co-op's most prominent foothold yet, and for Brooklyn bakers benchmarking their own naturally leavened sheet doughs, 388 Atlantic Avenue is one of the most instructive reference points to open this spring.