Here's How to Know if You're Sourdough Starter Is Ready for Baking (2024)

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 Apr 1, 2020

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Here's How to Know if You're Sourdough Starter Is Ready for Baking (1)

You’ve been tending to your brand-new baby sourdough starter for a good week or more, feeding it daily, and giving it a warm, comfortable place to rest. Maybe your starter is lively and happy, producing a yeasty aroma and plenty of bubbles. At this point, you’re likely wondering: Is my starter ready for baking bread?

The answer depends on a lot of factors, including the flour you’re using, how warm your kitchen is, and, most importantly, how much time you’ve put into your starter. Luckily, there’s one test that eliminates any guesswork. Here’s how to know if your starter is ready to bake with.

The Double Volume Test

If your starter doubles in volume within four hours of feeding, your starter is ready for bread making. The best way to track this is to mark your starter’s height right after you feed it. You can put a rubber band around the container, mark the spot with a piece of tape, or even make a mark with a dry erase marker. Set a timer for four hours and check on it — if it’s grown twice as high as your mark, it’s ready to bake with.

At this point, you’ll want to act immediately and start your leaven (the first step in the sourdough bread process). If you wait, your starter will deflate.

Here’s our recipe: How To Make Sourdough Bread

The Float Test

We’d be remiss not to tell you about another test: The float test is simpler, but less reliable than the volume test. Add 1 teaspoon of your starter to at least 1 cup of a room temperature water. If it floats, your starter is ready for baking. The issue is that some starters, especially those made with rye or whole wheat flour, can be ready for baking and not float, which is why we recommend the double volume test.

Remind Me: How Long Does It Take to Build a Healthy, Happy Starter?

If you’re starting a brand new starter from scratch, it will need 7 to 10 days before it’s ready for bread baking. The first four to five days will be spent getting your starter active and bulking it up. After day five, you’ll begin discarding some of the starter and continuing to feed it, during that time the bacteria and yeast in the starter will become stronger and more robust.

Make sure you give your starter plenty of time to build a healthy colony of yeast and bacteria. Wait at least a week before you try testing it, and then rely on the volume test for best results. If you’ve got the itch to bake before your starter is ready, consider making biscuits or baking focaccia with your starter’s discard.

Here's How to Know if You're Sourdough Starter Is Ready for Baking (2024)

FAQs

Here's How to Know if You're Sourdough Starter Is Ready for Baking? ›

You can perform a float test to check if your starter is ready. Take a small spoonful of the starter and drop it into a glass of water. If it floats, it indicates that the starter is sufficiently active and ready for use.

How do I know if my sourdough starter is ready to bake with? ›

Typical signs your starter is ripe and ready to be used:
  1. Some rise.
  2. Bubbles on top and at the sides.
  3. A sour aroma.
  4. Loosening in consistency.
May 16, 2024

How long should sourdough starter sit before baking? ›

If you're starting a brand new starter from scratch, it will need 7 to 10 days before it's ready for bread baking. The first four to five days will be spent getting your starter active and bulking it up.

How long should sourdough sit before baking? ›

To proof them, let them sit, covered, at room temperature for up to 3–4 hours, or let them proof for a little while at room temperature and then place in the refrigerator for 12–15 hours. Or you can speed the process by using a proof box, warm cooler, or slightly warm oven to speed things up.

How can you tell if sourdough is underbaked? ›

Your sourdough should also feel light (because a lot of the moisture in the bread evaporated during the baking process). If your bread does not sound hollow and feels heavy, chances are it's not cooked through properly and you need to leave it in the oven for longer.

What should sourdough look like when baked? ›

The outer crust of your sourdough bread should be crispy, crackly, and have a glossy, caramelized brown finish. The key to achieving a healthy crust is getting sufficient steam while baking, as it keeps the outer crust moist while the inside cooks.

What does the perfect sourdough starter look like? ›

It's okay if your starter doesn't have big bubbles. Large bubbles can be the result of the flour you're using and the hydration. What's more important overall, is to see strong signs of consistent fermentation: some bubbles, consistent rise each day, a sour aroma, a loosening in texture.

How do I know if my sourdough starter is peaked? ›

and is actually started to fall. You will know when your starters at its peak, when it is at least doubled in size, it starts to flatten on top. If it is still puffy and dome shaped, it's still rising.

Should I let sourdough come to room temperature before baking? ›

Can you bake sourdough straight from the fridge? Yes! In fact it's best practice to take your dough from the fridge, score it and pop it straight into a hot Dutch Oven. The cold dough and hot Dutch Oven combination equals maximum oven spring.

Should I spray sourdough before baking? ›

Another option for adding extra moisture to the dough before baking is to liberally spray the dough with water before placing it inside the Dutch Oven. You can spray with an atomiser or even paint water on the dough with a pastry brush. This is a common method to increase the blisters that form on the sourdough crust.

Can you leave sourdough starter overnight? ›

If you bake couple of times a week or once a week, best to move the starter in the fridge. You would then remove it from the fridge for feeding ahead of preparing the dough. Can I leave my starter out overnight after feeding it? Yes, if you have just fed it.

Should I put my sourdough starter in the oven with the light on? ›

However, if you can ensure this doesn't happen, keeping your sourdough starter in the oven with just the light on can create a warm, stable environment for your starter to thrive. This trick is perhaps better with older ovens that have a light bulb.

How do I know if my sourdough starter is alive? ›

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 much should sourdough rise before baking? ›

You can tell when your dough is ready when it's risen about 30% and you see little air bubbles throughout. Another test I do is to lift the container, tilt it to the side, and see if the dough releases easily from the sides of the container. If it does, then it indicates it's developed enough and is strong.

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