Portland Bakery Spotlights Sourdough Fermentation Craft Ahead of National Day

The chemistry is the same whether the vessel is a fermentation tank or a banneton. That operating principle sits at the core of The Brewer's Bread, the Northwest Portland bakery at 2600 NW Vaughn Street where Adam and Kellee Curfew cold-ferment every loaf for at least 20 hours before it sees an oven.

The Curfews appeared on KOIN's AM Extra during its Takeout Tuesday segment on March 31, one day ahead of National Sourdough Bread Day on April 1, to demonstrate their process and show finished loaves to a morning audience. The segment offered a working window into how a small artisan operation manages fermentation at scale: time, temperature control, and rigorous starter maintenance are the three variables the couple keep closest watch on.

The bakery's name is not incidental. Adam spent more than 20 years in the beer industry and studied chemistry while working as a brewer, and the discipline of zymology, the science of fermentation, carries directly into how The Brewer's Bread approaches its dough. The extended cold retard that defines every loaf requires the same patience that marks a well-managed brew: both depend on giving wild microorganisms time and a stable environment to complete their work. It is a framework that turns what most bakers treat as a rough guideline, "ferment until it doubles," into something closer to a controlled protocol.

For anyone watching the segment at home with their own starter on the counter, the visual record is useful in a specific way. Seeing how the Curfews stage their levain builds and manage proofing schedules provides a concrete benchmark for what a properly fermented loaf should look and behave like before it enters the oven. The finished breads shown on air carried the hallmarks of controlled long-ferment baking: blistered, caramelized crusts and an open crumb structure that only develops when fermentation has run its full course and the gluten network has had time to relax completely.

National Sourdough Bread Day on April 1 marks one of the oldest leavened bread traditions on record, with origins traced to ancient Egypt. The date has become a reliable calendar anchor for artisan bakeries to spotlight craft and process for audiences who may not otherwise think carefully about what separates a living-culture loaf from a commercially yeasted one.

The Brewer's Bread is open seven days a week from 8 a.m. to 3 p.m. at 2600 NW Vaughn Street. If you want to taste what a 20-hour cold ferment actually produces in a crust and crumb, that address is worth the trip.