Portland Sourdough Showcase Returns April 1 With Top Bakeries and Free Tastings

The second-annual Portland Sourdough Showcase landed on the only date that made sense: National Sourdough Bread Day, April 1, from 4:00 to 6:00 PM at STEELPORT Knife Co. Seven bakeries showed up with their loaves, their live cultures, and two hours' worth of institutional knowledge about starters, levain builds, and long fermentation, all free, all open to the public.

Ken's Artisan Bakery + Pizza Annex headlined a lineup that included Flour Market, Dos Hermanos, Cafe Olli, Little T Baker, Bauman's on Oak, and several additional vendors. These are Portland's working standard-bearers of high-hydration sourdough, and having them in one room made direct comparison possible in a way that rarely happens outside of competition judging. Tasting a Cafe Olli miche alongside a Ken's country loaf alongside a Dos Hermanos boule reveals, more than any recipe can, what different flour blends, hydration ratios, and fermentation schedules actually produce in the finished crumb and crust.

That side-by-side format was the real educational engine. The practical move was to pick one bread style and trace it across every baker who offered it, taking notes on open crumb versus tight, crust color, tang depth, and chew. The differences you find are the exact variables worth pressing at the Q&A tables.

And the Q&A ran deep. Bakers fielded technical questions throughout the two-hour window, covering autolyse timing, bulk fermentation cues, and cold retard rationale. Five questions in particular made the rounds worth pursuing: how each baker maintains their starter between bakes, what signals bulk completion (rise, poke, windowpane), what their go-to fix is when shaping fails, what flour blend goes into each loaf and why, and what their oven setup looks like at load time, whether that is a Dutch oven, deck oven, or steam-injected. Those five questions, asked consistently across multiple bakers, build a comparative framework no single tutorial can replicate.

Several bakers also brought live starters, some available for sale or giveaway. That detail elevated the event considerably: a mature, professionally maintained culture carries years of microbial selection, and inheriting one collapses the trial-and-error timeline for home bakers still nursing an unpredictable levain.

STEELPORT's working knife factory set the scene beyond the bread itself. Factory tours ran alongside the tasting, a raffle was on offer, and cider tastings reportedly paired with the afternoon, making the event genuinely hard to leave before the 6:00 PM close.

Now in its second year, the Showcase is becoming a fixture on Portland's fermentation calendar: a deliberate use of National Sourdough Day to move working knowledge from professional kitchens into home ovens. Seven bakeries, multiple live starter cultures, and open technical dialogue in a single afternoon is a strong argument that Portland's sourdough culture has moved well past trend.