How Do I Know If It’s Dead? And Other Sourdough Starter Questions, Answered (2024)

Sourdough for Beginners

Meghan Splawn

Meghan Splawn

Meghan was the Food Editor for Kitchn's Skills content. She's a master of everyday baking, family cooking, and harnessing good light. Meghan approaches food with an eye towards budgeting — both time and money — and having fun. Meghan has a baking and pastry degree, and spent the first 10 years of her career as part of Alton Brown's culinary team. She co-hosts a weekly podcast about food and family called Didn't I Just Feed You.

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updated Dec 8, 2022

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If I had a dollar for every text, DM, or phone call I’ve answered about sourdough starters just this month, I’d have enough funds to start a small bakery. Make no mistake — I welcome the opportunity to demystify the process of creating, feeding, and baking with a sourdough starter at home.

Caring for a starter shouldn’t be scary, and it only takes a few minutes of time each day (and even less once your starter is established).

Below, I’m answering five of the most common questions about feeding and maintaining a sourdough starter, gathered from Kitchn readers, my friends, and our own Apartment Therapy sourdough Slack channel.

But, First: What Is a Sourdough Starter?

A sourdough starter is a simple mixture of flour and water that has collected natural yeast and bacteria, which give natural leavening (aka rise) and flavor to baked goods. A starter can be substituted for commercial yeast or work in tandem with yeast to raise breads, biscuits, and more.

1. Did I kill my starter? And how do I know if it’s still alive?

A healthy, lively starter that has been properly fed has a clean, slightly yeasty scent and a bubbly surface. Remember — a brand new baby starter isn’t going to have much aroma or bubbles for the first few days, so if your starter is new, it’s likely not dead, it’s just not active yet.

The most common mistake people make when starting a sourdough starter from scratch is storing it in too cold of a location. Make sure your starter is at room temperature while you’re building it.

It’s also very common for starters to have a lot of activity in the first few days and then slow down. The first few super bubbly days are often a result of other bacteria coming to play in the starter, but when they die off, the bubbles will slow or even stop. Keep feeding your starter, and you’ll see normal activity (bubbles) return in a few days.

If your starter has a bit of dark liquid on top, it’s not dead! It simply means it’s hungry and that it’s time to feed it. Unless your starter has a pink or orange hue or is beginning to mold, you probably haven’t killed it yet.

As long as you do your best to create a consistent feeding routine for your starter and store it in the same spot everyday, it should be fine. Pretty soon, you’ll develop an eye for what makes your starter happy.

2. I want to try this, but I only have whole wheat flour at home right now. Will that work?

Yes, absolutely! Whole wheat and rye starters are pretty common in professional bakeries, and can also be fed and maintained with all-purpose flour later on down the line. Keep in mind that whole wheat and rye starters might need more than one feeding a day (most get fed every 12 hours) as they have more available “food” for the hungry bacteria and yeast in your starter.

3. When is my starter strong enough for baking?

A new starter will be ready for bread baking within 7 to 10 days. The best way to tell if your starter is ready is to feed it and measure its growth in a four hour period. A healthy, robust starter should double in volume within four hours of feeding. If it does double, begin the next step of the process (the levain) immediately.

You can also perform a “float test” which is a little less reliable, but can be used if you feel pretty confident in your starter and want to skip the feeding test. Just fill a cup with room temperature water and add 1 teaspoon of your starter. If it floats, it’s ready to go!

4. When you say discard half the starter, what do you mean? Throw it out?

You’ll discard half the starter to keep the ratio of starter to flour and water consistent, and so that you don’t end up with a gallon of starter when you only need a cup or two for most baking projects.

If you’re following Kitchn’s starter guide, you’ll begin “discarding” after day 4 of establishing your starter. You can throw discard away, but you can also use this discard to make another starter to share with a friend or save it for cooking and baking. Personally, I keep an airtight container of discard in my fridge for baking biscuits and making crackers and pancakes.

5. Can I take a break from my starter?

Yes, after your starter is established (about 10 days after you created it), you can move it from room temperature storage, where you feed it everyday, to the fridge. A starter stored in the fridge can be fed once a week. If you plan to use it often, you can store it for up to two months without feeding. When you want to use the starter again, remove it from the fridge for a few hours, then feed it every 12 hours for 36 hours before you make bread with it.

Need a really long break? You can even freeze your starter!

Sourdough for Beginners: Meet Your Crew

More Sourdough Resources

  • How To Make Sourdough Starter from Scratch
  • How to Make Sourdough Bread
  • Beginner Sourdough Sandwich Loaf
  • Essential Sourdough Equipment: Here’s Everything You Need to Make Sourdough Bread at Home

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How Do I Know If It’s Dead? And Other Sourdough Starter Questions, Answered (2024)

FAQs

How Do I Know If It’s Dead? And Other Sourdough Starter Questions, Answered? ›

Keep feeding your starter, and you'll see normal activity (bubbles) return in a few days. If your starter has a bit of dark liquid on top, it's not dead! It simply means it's hungry and that it's time to feed it. Unless your starter has a pink or orange hue or is beginning to mold, you probably haven't killed it yet.

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.

What does inactive sourdough starter look like? ›

In between feeds, whilst your starter is in the fridge, it becomes dormant and sometimes it will look like it's separated, with a layer of murky liquid on the top often called the 'hooch'.

Should I feed my starter if it didn't rise? ›

If your sourdough starter won't rise anymore, reset it by putting 25 grams of starter in a jar and feed it 50 grams of flour and 50 grams of water. With this ratio, your starter should double in size in about 12-24 hours.

How many days does it take to revive a sourdough starter? ›

If the starter is not close to doubling by 12 hours later, feed it again – and repeat until the starter doubles within 12 hours, then reduce to a 24 hour feeding period. Once the starter is revived and doubling regularly, it should be maintained on the counter and fed every 24 hours for 4-5 days.

What does the perfect sourdough starter look like? ›

Active sourdough starter should have bubbles in it and also smell fresh and fruity. If yours seems a little sluggish, just keep it out of the fridge and step up the feeding schedule. Once you feed it every day for a few days to a week, it should show signs of life again.

Can you overfeed your sourdough starter? ›

It's important to note that overfeeding can also have negative effects on a sourdough starter if done excessively or too frequently. If the starter is overfed, it can become too acidic or develop an unpleasant odor which is the result of excess food rotting in the jar.

Why is my sourdough 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.

What does spoiled sourdough starter look like? ›

Typical signs of food spoilage and mold include pink, orange, or green colors, white fuzzy spots, or sometimes areas that are darker with white areas on top. If you see any of these signs, I would recommend throwing your starter away and creating a new one.

How active does my sourdough starter need to be? ›

The most important sign of sourdough starter readiness is that your starter is doubling every single time you feed it. A sourdough starter needs to at least double its volume, but could even triple if it's really active and happy.

Is my sourdough starter dead? ›

Keep feeding your starter, and you'll see normal activity (bubbles) return in a few days. If your starter has a bit of dark liquid on top, it's not dead! It simply means it's hungry and that it's time to feed it. Unless your starter has a pink or orange hue or is beginning to mold, you probably haven't killed it yet.

What happens if you don't discard half of sourdough starter? ›

If you don't get rid of the excess, eventually you'll have more starter than your feedings can sustain. After a few days, your daily 1/4 cup flour and water won't be enough to sustain your entire jar of starter, and your starter will be slow and sluggish, not much better than discard itself.

Why is there no activity in my sourdough starter? ›

Part of what makes a starter rise and become bubbly is the yeast. Yeast will become dormant when kept in colder temperatures. If your house is particularly warm (or if you keep your starter in the fridge), it could be sluggish. Try keeping it somewhere warm.

How do you revive a struggling sourdough starter? ›

Feeding the starter part whole wheat or rye flour will help restore the balance. About 5% whole wheat and 95% white for a few feedings seems to take care of this in a few feedings. If you are measuring by volume, put a tablespoon of whole wheat or rye flour in each measuring cup, then fill them with white flour.

How to fix sluggish sourdough starter? ›

Dilution reduces acidity. And larger feedings encourage yeast activity. I do this by putting 2 TBSP (60 grams) of the slow starter in a clean stainless steel bowl, whisking in 1/4 cup (60 grams) of water, and then whisking in 1/2 cup (60 grams) of the plainest white flour I can find.

How to kickstart sourdough starter? ›

How to Feed a Sourdough Starter
  1. Begin by removing and discarding about half of your starter.
  2. Replenish what's left in the jar with fresh all purpose flour and water.
  3. Cover loosely, and let it rise at room temperature until bubbly and double in size. ...
  4. Feed your starter everyday if it's stored at room temperature.
Mar 21, 2019

What does a weak sourdough starter look like? ›

The starter looks lifeless

Other than failed bread and weak dough, you can tell just by looking at a starter that it is weak. It won't have any bubbles and it won't rise very much after feeding. It will look lifeless. An active, bubbly starter, on the other hand, looks alive.

What does underfed sourdough starter look like? ›

A liquidy, hoochy starter is a hungry starter

If underfed, a starter can literally starve to death as the active bacteria go without food, and you will have to mix a new one together.

How long does it take to make a strong sourdough starter? ›

Creating a healthy and vibrant sourdough starter can take anywhere from 7 to 14 days depending on several factors. The temperature of your kitchen is the most important factor to consider. Starters thrive in a warm environment, ideally around 75°F (24°C).

Should sourdough starter be thick or runny? ›

When starting to build your starter you can leave it a bit thinner but once you start making bread you will want it THICK, You want your sourdough starter to be the consistency of thick pancake batter. if it's too thin add a scoop of flour. If it is too thick add water to find the right consistency.

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