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Behind Our Sourdough Starter (15 Years and Counting)

By Eleanor Marsh, Head Baker ยท August 14, 2026 ยท 8 min read

Somewhere in our refrigerator right now, there's a quart container with a small smear of pale, sticky, faintly sour dough stuck to the sides. This is our starter. It's 15 years old. It's been on the verge of death at least twice. And every loaf of sourdough we've made since we opened has come from it.

A starter isn't magic, but it is alive. It's a colony of wild yeast and lactic acid bacteria that exists in a kind of managed symbiosis โ€” you feed it flour and water, it produces carbon dioxide (which makes bread rise) and organic acids (which make it taste like sourdough). The particular strains in any given starter are shaped by the flour you use, the water, the temperature of your kitchen, even the flour dust in the air.

Where Ours Came From

I started this starter in 2011 in my apartment kitchen in Columbus. I'd been baking bread for a few years but had never done sourdough. I mixed flour and water, left it on the counter, and checked it every day. By day four something was happening. By day ten I was baking my first loaf.

When I moved to Brambleton in 2013 to start the bakery with my business partner Owen, the starter came with me in a cooler bag. When we hired our first full-time baker in 2015, I spent two hours explaining how to feed it correctly. This starter has outlasted two kitchen remodels, one refrigerator, and three baking assistants. It knows the routine.

The Two Near-Death Experiences

The first time it almost died was 2016. We went on a long weekend trip โ€” the only real vacation we took that first stretch โ€” and forgot to tell anyone to feed the starter. When we came back five days later, there was a thick layer of liquid on top (called hooch โ€” alcohol produced by the yeast eating everything available) and a gray tinge to the dough underneath. It smelled wrong. Sharp and chemical, not pleasantly sour.

We poured off the hooch, discarded most of the starter, kept about a tablespoon, and fed it back to health over four days. It came back. Slowly, then completely.

The second time was worse. An equipment malfunction kept the walk-in refrigerator at a slightly too-warm temperature over a long weekend. The starter fermented too fast, became too acidic, and the bacterial balance shifted badly. We nursed it back using flour we'd saved from the same batch as the original feed โ€” we always keep a small supply of the same flour specifically for this scenario. By day six it was normal again.

What most people don't know: a starter that looks "dead" usually isn't. The wild yeast can lie dormant at very low temperatures or under high acidity and reactivate when conditions improve. Patience and consistent feeding fixes most starter problems.

Why It Still Tastes the Same

People sometimes ask if the 15-year age makes any difference โ€” whether an "older" starter is inherently better. Honestly: the age itself isn't the variable. What matters is the stability of the microbial community, the consistency of how you manage it, and the flour you use.

What I think has stayed constant in ours is the strain composition. We've been using the same source flour for over eight years. We feed at the same intervals and the same ratios. The starter lives in the same temperature range. Over time, the yeast and bacteria that thrive in those conditions have become dominant and stable. New batches of starter fed identically can reach the same stability โ€” it just takes time.

The reason ours "tastes like ours" is the consistency. Same flour, same process, same bakers, day after day. The starter is a constant in a controlled system. When it produces the same acids in roughly the same proportions, the bread tastes the same.

What This Means for the Bread

We use this starter for our country sourdough and our seeded rye. The honey whole wheat uses a yeast-leavened process. The difference in flavor between a sourdough and a yeasted bread is entirely the organic acids produced by fermentation โ€” lactic acid (mild, creamy) and acetic acid (sharp, vinegary). Our starter leans mildly acidic, which is why the crumb flavor is tangy but not aggressive.

If you've ever noticed that our sourdough tastes consistent โ€” reliably the same loaf every time โ€” that's not luck. That's 15 years of maintenance, two near-disasters, and a lot of careful repetition.

Come taste it for yourself.

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