Sourdough Discard 101 (2024)

FAQs

How soon can you start using sourdough discard? ›

Remember, you can't use the discard from your homemade sourdough starter for the first 7 days. You can use sourdough discard in all kinds of sourdough discard recipes, including these no wait sourdough recipes, overnight sourdough discard recipes and sourdough discard recipes that use up a lot of discard.

What to do with sourdough discard? Don't throw it away! Instead, use it to make delicious and nutritious treats like pancakes, waffles, muffins, and bread. Sourdough discard is a great source of natural yeast and flavor, and can add a unique tangy taste to your baked goods.

You can always use this discard by directly mixing it into a dough for baking. Your discard, as long as it's in good shape, will leaven any bread dough just as well. The discard is just like a levain you would make for a recipe. The only difference is it's the same makeup as your starter.

Baking with sourdough discard also adds a great slightly sour flavor and additional lift to your baked goods. When you are baking with sourdough discard, it should always be at room temperature (to help the dough rise), and unfed (i.e. this is the discard, not the fed part of your starter).

You can store mature sourdough discard in the refrigerator indefinitely. As long as there is no mold, it is good to use. It may develop a grayish liquid on top called “hooch” which can be poured off before use or stirred in. If you stir it in, the flavor will become more sour.

I left my sourdough discard out at room temperature for a few days. Is it okay? As long as your kitchen isn't too warm (I'd say 78°F or higher) your starter/discard will be fine stored at room temperature for at least a few days without feeding. The flavor will get more acidic the longer it sits.

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.

Take a little bit of discard from your jar. Feed it as you would a sourdough starter. Continue this process for a couple of days until the starter is rising and falling predictably again. This is your new sourdough starter.

The starter you remove doesn't have enough life it in—bacteria and yeast—to leaven a loaf of bread. But just as waste isn't waste until you waste it, discard isn't discard until you discard it, which you don't need to do.

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.

Can I use sourdough discard straight from the fridge? ›

If you're an experienced baker and are familiar with working with a cold sourdough starter that has been kept in the refrigerator for a long time and you've had success, then it's totally OK to use your starter straight from the refrigerator. You can utilize a cold starter in any sourdough discard recipe.

If your recipe calls for more than 227g (about 1 cup) of starter, feed it without discarding until you've reached the amount you need (plus 113g to keep and feed again).

You can store sourdough discard in a separate container, then bake with it when you want — for instance, maybe you fed your starter on Tuesday, leaving you with discard that you want to use to bake pancakes on Saturday.

If you've just created your sourdough starter, wait until it's reliably rising and falling each day with signs of fermentation—some rise, bubbles, a progressive sour aroma—before storing discard in your cache.

Over the past decade-plus of baking, I've tested all manner of flour from whole grain wheat to spelt to einkorn, and while they all do work, my preferred flour to use when creating a sourdough starter is whole grain rye flour and white flour (this can be all-purpose or high-protein bread flour).

Sourdough discard only lasts a day or two at room temperature. As such, it is best to keep your discard in the fridge, where it will last for up to one week. Of course, you can only rely on it lasting that long if you store it correctly.

Can I use sourdough discard to make a new sourdough starter? Absolutely! You can take a portion of sourdough discard and add a few grams of flour and a few grams of water to create a healthy active sourdough starter. You may need to feed your revived starter a few more times before its ready to make bread.

You can use 1-2 week old discard in “discard recipes”… think cookies, brownies, muffins, non-yeast breads, tortillas (pretty much anything that doesn't require active starter (aka wild yeast).

If it floats, it's presumably at its peak activity and contains lots of bubbles of carbon dioxide, the result of happy, thriving, natural yeast. If it sinks to the bottom, the starter is presumably not ready, requiring further time and feedings before use in your sourdough recipes.

Is this normal? Yes. The lactic acid bacteria in your starter creates acetic acid, which is essentially a type of vinegar. This odor is very common.

Do you have to discard sourdough starter every day? ›

If you are keeping your sourdough starter on the counter, you could leave it for a few hours and then you'd need to feed it again ready to make your next batch. Whether you use your starter in your bread making or you discard your starter in other ways - you MUST discard to keep your starter healthy and thriving.

Can you add sourdough discards together in the same jar? Yes you can add sourdough discards from different days together in the same jar. You just need to make sure you stir it well and you don't leave it sitting in the fridge for too long. Sourdough discard should be used within two weeks.

Only a small portion of the sourdough starter is reserved and fed during each feeding, the rest is referred to as discard, since typically it is thrown away. In efforts to reduce waste, discard is often collected from multiple feedings and stored in the fridge until enough is allotted to be used for discard recipes.

*Do not try baking with your starter right after feeding it. Allow time for it to grow and feast on the flour before using it. Starters are usually ready to bake with around 4-12 hours after a feeding depending on the amount you feed your starter. The larger the feeding, the more time it needs to ferment.

I don't recommend using starter discard from the fridge to make sourdough bread. Why? The discard could be sitting in the fridge for several days, up to 2 weeks, which is far too long without feeding in an environment that's too cold.

It's not a good idea to use a sourdough starter right after feeding. Ideally you should wait at least 2-4 hours. When you first feed a sourdough starter, it's at its weakest point. It has not had time to consume the sugars in the flour and is flat and inactive.