How to make, feed, and maintain sourdough starter from scratch (2024)

Reviews Kitchen

Written by Taylor Tobin

2021-09-21T16:09:11Z

How to make, feed, and maintain sourdough starter from scratch (1)

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  • To make a sourdough loaf, you need to begin with sourdough "starter" that contains wild yeast.
  • It takes about seven days to get sourdough starter to the point where you can use it to make bread.
  • If your starter looks dried out or otherwise unusual, you can perk it up with a quick feeding.

How to make, feed, and maintain sourdough starter from scratch (4)

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Sourdough bread is hearty, flavorful, and versatile. For the baker in charge, it also requires a significant amount of prep time and plenty of patience.

To get that classic sourdough tang and texture, you need to whip up a sourdough starter, or a mixture of flour and water designed to cultivate wild yeast for baking. Fortunately, the seasoned sourdough experts Kyrie Luke, recipe developer and healthy lifestyle blogger of Healthfully Rooted Home, and Sim Cass, dean of techniques of artisan bread baking at the Institute of Culinary Education, have some answers.

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Storing and maintaining your sourdough starter

Because a sourdough starter is a "living organism," it's never a totally "finished" product. It requires maintenance and proper storage to keep it usable. The good news? Once you have a maintenance routine down, you can keep your sourdough starter "alive" indefinitely.

"How often you maintain your sourdough starter depends on how often you [bake with] it," Luke says. "If you use it everyday or every couple of days, you'll just leave it on the counter and feed it daily. If you use your starter only about once or twice a week, you can leave it in the fridge between uses and feed it one or two times a week."

When you "feed" your starter, make sure that you also discard some of your starter before adding to it (since sourdough starters expand in size). Luke uses one cup of flour and one cup of water as her go-to feeding formula, and she'll discard up to half of her existing starter before new feedings, depending on the volume and the overall health and age of the starter.

Glass jars and other lidded glass containers work best for sourdough starter storage, and a transparent jar will allow you to see how your starter is faring at any given time. Because cool temperatures slow the growth process of the starter's yeast, it's advisable to keep your starter in the fridge if you aren't planning to use it in the near future.

If you miss a few feedings and your starter begins to look dry and deflated, Luke says you can easily reactivate it by "feeding it…a lot!" On the subject of reactivation, Cass tells us that, if you're starting off with a refrigerated starter that's gone dormant (i.e. the yeast has slowed down from lack of "feeding"), you might notice a yellowish liquid forming on top (known to sourdough makers as "hooch") or even some black sediment (which are yeast cells that have died). In this case, Cass says you should "leave it at room temperature overnight. On the next day, feed it with equal parts flour and cool water for two days. The starter should be bubbly and smell tasty and sweet."

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Sourdough starter tips and tricks

How to make, feed, and maintain sourdough starter from scratch (7)

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  • Don't panic if you see dark discharge or smell an alcoholic aroma. Luke insists that a bit of crustiness, a boozy fragrance, and even a dark liquid layer aren't anything to worry about. "You might notice a crust on the top – this just means that it needs to be stirred more frequently. Depending on the time of year and how warm you keep your house, you might need to stir your starter every 12 hours," Luke says. "Also, you could keep a damp tea towel over it, and that'll prevent the crust from forming." If you smell alcohol, Luke explains that just means the starter needs to be fed. And that scary-looking black water? According to Luke, "this is also normal. It just means that the starter is hungry."
  • Consider other uses for sourdough starter beyond a loaf of bread. If you find yourself with more starter than you need for bread, there are plenty of other ways to use this powerful stuff. "I would suggest using your starter for things you never thought of, like breading chicken, making muffins, and making pizza crust. The more you use and feed your starter, the healthier it'll be!" Luke says.
  • Don't overthink it. It's easy to assume that starters are a complicated project and that messing the whole thing up is a foregone conclusion. However, Cass says that there's no point in overthinking your starter-making."It's been done for years! Just make sure that you believe in the process," Cass says. Luke agrees that you should "go in with confidence." She also emphasizes the fact that "sourdough starters are super resilient. If you think it's dead, it's probably not. If something seems wrong, it's usually nothing that a few feedings can't fix."

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Insider's takeaway

Daunting though they may seem to a baking novice, sourdough starters are an easy albeit time-consuming project, and they can result in big rewards in the form of delicious bread and other culinary treasures. Take your time, have faith in your process, and remember that your "mistakes" are fixable.

Taylor Tobin

Taylor Tobin is a contributing writer for Insider and a freelance food and beverage journalist with bylines at Eater, Food & Wine, Austin Chronicle, Wine Enthusiast, and Southern Living, among others. She lives in Austin with her rescue dog Marty McFly, who keeps her company as she tests kitchen products at home, develops new recipes, and visits cafes, beer gardens, and restaurants throughout the city. Follow her on Instagram at @tee_tobes.

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How to make, feed, and maintain sourdough starter from scratch (2024)

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