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Here’s all you need to know about on how to feed a sourdough starter, including how to tell if your sourdough starter is bad. Take it from us: cookbook authors who have been making sourdough bread for years!

how to feed sourdough starter | feeding sourdough starter | maintaining sourdough starter | storing sourdough starter | sourdough starter container

Got a sourdough starter? If you’ve recently taken on the role of caretaker to a starter, the new responsibility might feel overwhelming! As part of our series How to Make Sourdough Bread: The Simplified Guide, we’re showing you how to feed sourdough starter, an essential task for making sourdough bread.

In order to have bread on the regular, you have to learn to feed sourdough starter to keep it happy and healthy. Here’s how to feed sourdough starter, including storing and maintaining sourdough starter, and how to tell if sourdough starter is bad.

Watch the video

First, here’s a video on the process! Watch Alex, our resident bread expert, show you how to feed sourdough starter.

Where to find a sourdough starter

A sourdough starter, also called levain, is a fermented dough filled with natural yeast. The starter is used to make sourdough bread rise and give it that characteristic sour flavor. If you’ve ended up here, we assume at this point you already have a sourdough starter on hand.

But if you don’t already have a sourdough starter, did you know you can make it at home? Here’s our guide on how to make sourdough starter, complete with all our tips. You also can get a sourdough starter from a friend or purchase it online. Making sourdough starter takes very little hands on time: and just 5 days of waiting before the starter is active and ready to go.

how to feed sourdough starter | feeding sourdough starter | maintaining sourdough starter | storing sourdough starter | sourdough starter container

Tips for storing a sourdough starter

To store your starter, you’ll need a sourdough starter container. Any covered jar will work, but here’s our the sourdough starter container. Just place the starter right into the container, which is now his or her home. (Note: Over time the starter’s home can become gummy: every week or two, take the starter out of the container and wash the container, then replace the starter and follow the normal feeding instructions below.)

You’ll want to store your starter in the refrigerator until you’re ready to make bread. When you make bread, you’ll feed the sourdough starter the night before (see the recipe below), then return the sourdough starter to the refrigerator until you’re ready to bake again.

How to feed a sourdough starter

  1. At around 9:00 pm, take the active starter out of the refrigerator.
  2. Remove and throw away all but about 1 tablespoon of the starter.
  3. Add 50 grams of purified water and 50 grams of all purpose flour.
  4. Stir, cover, and leave out on a counter at room temperature overnight.
  5. The following morning when the starter is active and bubbly and about doubled in volume, use in bread or place it in the refrigerator.  (We find that the starter takes about 12 hours in our home to double in size; timing in your home may vary slightly.) If you’re using the sourdough starter in bread, place any remaining starter that you didn’t use in the recipe in the refrigerator until the next feeding.

If you’re actively using your starter to make our Sourdough Bread recipe, the instructions above will allow just enough leftover sourdough starter to have enough starter for the next day’s bread. If you’re not making bread every few days, you’ll need to discard excess starter as part of the feeding process to keep it healthy and happy.

The frequency for feeding

What’s the frequency for feeding a sourdough starter?

  • You can leave the starter in the refrigerator for 3 to 4 days at a time between feedings. We recommend feeding sourdough starter at least twice a week for best results.
  • Remember, if you’re planning to make bread on a given day, you’ll feed sourdough starter the night before you bake. So depending on how often you want to make bread, you may end up feeding your starter more often.
  • For us, we make a loaf of sourdough bread about 4 times a week, so we feed it 4 times per week (every night before we make bread). If we have a week where we plan to make less bread, we’ll still feed the starter 2 times per week, regardless of whether we’re making bread.
how to feed sourdough starter | feeding sourdough starter | maintaining sourdough starter | storing sourdough starter | sourdough starter container

Troubleshooting your sourdough starter

A healthy starter smells funky and fruity, in a good way. It’s a floury paste that’s lightly bubbly. But every once in a while, something can go wrong with your starter. If you don’t feed it often enough, the sourdough starter starts to smell like alcohol. You may also find that the starter loses its vibrancy and doesn’t get too bubbly and active after a feeding.

Don’t worry, you can always get the starter to recover. Throw away all but about a teaspoon of the starter and nurse it back to life following the instructions for making a sourdough starter. It should take 5 days or less to be healthy again.

What if I go on vacation?

What if you want to go on vacation: what should you do with your sourdough starter? In our experience, we’ve found that if you’re leaving for over a week, it’s best to discard your sourdough starter and start again with the process of making a sourdough starter.

Of course if you have a friend or family member who can babysit your sourdough starter, that’s even better! Actually, in Sweden you can hire a babysitter for your sourdough starter. So maybe it’s not so far fetched!

how to feed sourdough starter | feeding sourdough starter | maintaining sourdough starter | storing sourdough starter | sourdough starter container

This post is one of three in our series on making sourdough bread:

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How to Feed Sourdough Starter

Sourdough starter
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Wondering how to feed a sourdough starter? Here’s all you need to know about on feeding and maintaining sourdough starter, including how to tell if your sourdough starter is bad.

  • Author: Alex
  • Prep Time: 2 minutes
  • Cook Time: 0 minutes
  • Total Time: 2 minutes
  • Yield: 80 grams starter 1x
  • Category: Bread
  • Method: Stirred
  • Cuisine: French

Ingredients

Scale
  • 50 grams all-purpose flour
  • 50 grams filtered water (room temperature)

Instructions

  1. At around 9:00 pm, take the active starter out of the refrigerator.
  2. Remove and throw away all but about 1 tablespoon of the starter.
  3. Add 50 grams of purified water and 50 grams of all purpose flour.
  4. Stir, cover, and leave out on a counter at room temperature overnight.
  5. The following morning when the starter is active and bubbly and about doubled in volume, use in bread or place it in the refrigerator.  (We find that the starter takes about 12 hours in our home to double in size; timing in your home may vary slightly.) If you’re using the sourdough starter in bread, place any remaining starter that you didn’t use in the recipe in the refrigerator until the next feeding.

Notes

Note: Our sourdough bread recipe calls for 80 grams of sourdough starter, leaving 20 grams of starter for the next batch. If you’re using a different bread recipe that calls for more starter, you can add any amount of flour and water as long as the weights are the same.

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About the authors

Alex & Sonja

Hi! We’re Alex & Sonja Overhiser, authors of the acclaimed cookbooks A Couple Cooks and Pretty Simple Cooking—and a real life couple who cooks together. We founded the A Couple Cooks website in 2010 to share seasonal recipes and the joy of home cooking. Now, we’ve got over 3,000 well-tested recipes, including Mediterranean diet, vegan, vegetarian, pescatarian, smoothies, cocktails, and more!

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109 Comments

  1. Gary says:

    I’ve left my starter in the fridge for 6 months without feeding it.. Drain off the liquid and start feeding slowly.. comes alive over a couple days.. feeding every week is WAY too much work for me :-) Yeah Yeah, I’m not lazy, I’m busy with summer lol

  2. David says:

    In a fridge at 4 degC a starter will keep for two months. We normally run our fridge at 6 degC and I routinely leave me 3 starters (wheat, rye and gf) for up to two weeks with absolutely no issues.

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