Does sourdough starter get better with age? (2024)

Bakers often liken their sourdough starter to a pet. They give it a cute name (“Doughy Parton”), express slight exasperation about feeding schedules, and brag about a bond strengthened by time.

Having a sourdough starter that’s years — sometimes decades! — old instills a sense of accomplishment and pride, and some bakers love to share their starter origin stories. But does an older starter actually make better bread?

For most bakers, the answer is a clear no.

Maurizio Leo, author of the award-winning bread cookbook The Perfect Loaf,still uses the first starter he ever made; it’s now 12 years old. And while he’s sentimental about that starter, he says its age doesn't really impact his bread. Flour Powerauthor Tara Jensen agrees; she emphasizes that your starter’s health is more important than its age. “When it comes down to the performance of the starter in a dough, I’d rather use a starter that’s a few weeks old and been well kept than an older starter that’s been neglected,” she says.

King Arthur baker Martin Philip puts it more bluntly: “Starter age is unimportant to me.” He adds, “Once the starter reaches a state of relative stasis and reliability, I don’t care if it’s eight or 80. I just want to make stuff with it.”

Does sourdough starter get better with age? (1)

Photography by Danielle Sykes; food styling by Liz Neily

It’s worth taking a closer look at sourdough starter itself and how it evolves over time. It’s a bit like the Ship of Theseus, the philosophical thought experiment that asks whether an object is technically the same object after having all its original components replaced. The same principle is at play in sourdough starter — because starter is continually replaced with new doses of flour and water to feed the flourishing community of microbes that it contains, it doesn’t stay stagnant. Instead, “starters tend to evolve along with you and your feeding practices,” explains Baker’s Hotline member and sourdough specialist Barb Alpern.

As Jennifer Latham, author of Bread Baking with Kidsand former lead bread baker at Tartine, recounts, “At Tartine I was taught that the age or origin of your starter didn’t really matter because it would always adjust to the conditions it was being fed in.” So basically, if you have a starter that’s ten years old, it doesn’t matter what it was like a decade ago, or even a few years ago. What’s going to impact your bread the most is how your starter thrives in the conditions it’s currently in (and of course, how well you’re feeding and maintaining it).

That doesn’t mean you can’t preserve certain characteristics of a starter, though. Jennifer recounts how Thomas Teffri-Chambelland, a former microbiologist and author of Sourdough Panettone and Viennoiserie,gifted her a starter that contained a specific microbe required for panettone dough (which needs a specialized environment because it’s high in fat and sugar and low in water). He told her that as long as she fed it with the right regimen of very dry feedings and sugar water baths, she could retain this microbe in her starter by sustaining an environment in which it thrives and has an advantage over most other flora that might be introduced. Jennifer theorizes that “if you collect a certain microbe and keep it alive through feeding, it probably won’t die out just because new microbes are introduced.” As she mused, “I wonder if some of the anecdotal evidence of older starters having better flavor or baking capabilities comes from a greater biodiversity in them.”

Does sourdough starter get better with age? (2)

Danielle Sykes

Jennifer likes to expose her starter to new environments in the hopes of introducing “something new and fun,” as she puts it. She travels with her starter and always leaves the lid cracked in new locations, from Big Sur to Sebastopol, California, to allow new microbes to wander in. Maurizio does something similar: “Over the years, I’ve integrated bits of other bakers’ starters from around the world into mine. It’s a way to introduce new microbes, speed evolution, and get the strongest starter possible!”

This approach reflects the deeply personal relationship many bakers have with their starter —just like they do with their pet. “My starter has been with me through countless bakes and many life changes,” Maurizio reminisces. Tara adds, “I think origin stories are important, and often the narratives we tell about the age of our starters involve other stories about family, friends, and places we love. … It’s a beautiful thing for something to be tended to for 20, 50, 100 years.”

Here at King Arthur, our Classic Fresh Sourdough Starter is descended from one that’s been lovingly nurtured in New England for decades. Once you feed and maintain it in your own home, it will eventually adapt to your own region and climate, becoming uniquely yours. At the same time, though, you can know that thousands of bakers before you — including many of us at King Arthur! — have made wonderful sourdough bread with a bit of this same starter.

Does sourdough starter get better with age? (3)

Photography by Rick Holbrook; food styling by Kaitlin Wayne

While the age of your starter won’t make your bread any better — turns out, only good sourdough practices can do that — it’s a link in the long legacy of sourdough, one of the oldest forms of baking that exists. Whether your starter is a week or a decade old, you can become part of that lineage as well.

Get baking with more essential sourdough knowledge:

  • Our beginner’s guide to sourdough is here to take you from beginner to baker in no time
  • To find your go-to bread, check out our list of 14 super sourdough recipes
  • What to do if you make good bread, but want to make it great

Cover photo by Rick Holbrook; food styling by Kaitlin Wayne.

Does sourdough starter get better with age? (2024)

FAQs

Does sourdough starter get better with age? ›

Having a sourdough starter that's years — sometimes decades! — old instills a sense of accomplishment and pride, and some bakers love to share their starter origin stories. But does an older starter actually make better bread? For most bakers, the answer is a clear no.

Does sourdough starter get stronger with time? ›

Now that you've built your own sourdough starter, you will need to maintain it in order to be able to continually bake with it. The good news is that the older your starter gets, the stronger it gets. Time is a great friend to your little natural yeast colony, but you can't “set it and forget it” indefinitely.

How to refresh an old sourdough starter? ›

Discard most of the starter (you can either just remove it from the jar or place some of the starter into a clean jar). Feed the remaining starter with 100g of flour and 100g of water. Let it sit out at room temp for around 12 hours.

How do I know if my sourdough starter is strong enough? ›

A “ripe” starter is one that's fermented for some number of hours and is ready to use in a recipe, whether to make a levain or mix directly into a dough for sourdough bread-making. Generally, when a starter is ripe, it has risen, is bubbly on top, has a sour aroma, and has a looser consistency.

How old is the oldest sourdough starter? ›

The World's 'Oldest' Sourdough Starter Was Made With 4,500-Year-Old Yeast. There's no bread quite like sourdough. In addition to being tasty as a sandwich bread, delicious as sourdough croutons, and even great just toasted with butter, sourdough's production process is decidedly unlike other breads.

Does sourdough starter get better the older it is? ›

While the age of your starter won't make your bread any better — turns out, only good sourdough practices can do that — it's a link in the long legacy of sourdough, one of the oldest forms of baking that exists. Whether your starter is a week or a decade old, you can become part of that lineage as well.

Why is my sourdough starter not getting stronger? ›

Most commonly, the issue here has to do with temperature (which is very important). If your sourdough starter is kept at a low temp, even 70°F (21°C), it will slow fermentation activity and appear to be sluggish, taking longer to rise and progress through the typical signs of fermentation. The solution: keep it warm.

How do I know if I ruined my sourdough starter? ›

However, if you detect any strong, putrid, or rancid smells, it is a clear indicator that something has gone wrong. Rancid or Putrid Smell – If your starter has a rancid, putrid, or even rotten odour, then it is likely to have spoiled or have been contaminated.

What does a dead sourdough starter look like? ›

What Does Bad Sourdough Starter Look Like? It's usually pretty obvious when your starter has gone bad. You will either see mold or discoloration (generally pink or orange). If you see either of these things, you will need to toss your starter.

How to fix sluggish sourdough starter? ›

My starter is sluggish (taking too long to double)
  1. Feed at a lower hydration. ...
  2. Feed more often. ...
  3. Keep it warmer. ...
  4. Feed it all white flour.
Apr 17, 2023

Do you have to discard sourdough starter every time you feed it? ›

Do I have to discard my sourdough starter? It would be best if you discarded some portion of your starter each time you feed it unless you want to continue to let it grow. Eventually, you need to discard the used “food” (flour and water) that's been used to sustain your starter during the last fermentation period.

Should I stir my sourdough starter? ›

It will look like a sticky, thick dough. Scrape down the sides and cover with a tea towel secured with a rubber band. Place the jar at room temperature for 24 hours, until you begin to see the mixture bubbling up. It is important that you stir the sourdough starter every day in the morning and in the evening.

Why is my starter bubbling but not rising? ›

If your starter gets completely covered on top with bubbles but does not rise, it is healthy but may just be a wet mix. Try reducing the water in your next feeding and see if you have different results. Also, the type of flour you are using can impede the rise of your starter.

How long is too long for sourdough starter? ›

As long as your sourdough starter has been well looked after then it can last for years. In fact, it can last indefinitely with proper care! By proper care, I mean how it is maintained, the environment it is stored in, and how often it is used.

What is considered a mature sourdough starter? ›

After repeating this process, over time this mixture will start to bubble, rising and falling with increasing predictability. After even more time (two weeks, or longer), you will have a mature sourdough starter—a stable community of microbes that can leaven bread.

How does sourdough starter not get moldy? ›

Feeding your starter regularly cultivates a healthy colony of wild yeast and good bacteria, which maintain an average pH of 3.5-5, a level that inhibits the growth of mold spores and other pathogenic bacteria, such as botulism and E. coli.

Does sourdough starter get more sour over time? ›

The longer you go in between feedings, the more acetic acid your starter will develop. This acid creates a more sour flavor.

Does it matter what time you feed your sourdough starter? ›

My Sourdough Starter Feeding Schedule

I like to feed once in the morning at around 9:00 a.m. and once at night at around 9:00 p.m. This isn't a super strict schedule, sometimes I feed a little earlier and sometimes a little later, but generally, I like to keep to those times.

What happens if you use sourdough starter past its peak? ›

Using a slightly post peak works fine. This is actually the point where the yeast population is at its highest. Using a starter well past peak will have suboptimal performance and it will start to be more acidic, but can still raise a loaf – perhaps just more slowly or unpredictably.

What happens if I leave my sourdough starter too long? ›

If your sourdough starter is left too long it gets hungry and exhausted. You will know because it will have doubled and then the air pockets start to collapse and the mix deflates. This can happen at any temperature, but it will be slower to occur in cool environments and much faster in warmer.

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