Sourdough Banana Bread (Starter Discard Recipe) - Umami Girl (2024)

FAQs

How much of your sourdough starter should you discard? ›

Room-temperature starter should be fed every 12 hours (twice a day) using the standard maintenance feeding procedure: discard all but 113g, and feed that 113g starter with 113g each water and flour.

Over the years, I've found keeping the mixture warm at around 80°F (26°C), and high hydration (100% water to flour in baker's percentages) helps get things started. In addition, while not mandatory, using certain flour also helps increase the chances a starter will take hold quickly (see below).

Active starter and discard both come from the same sourdough starter. However, they are in different phases. Active starter has been fed flour and water within the last 12 hours or so and is growing until it hits its peak. Once it begins to fall it is considered discard.

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.

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.

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.

While the age of your starter won't make your bread any better — turns out, only good sourdough practices can do that — it's a link in the long legacy of sourdough, one of the oldest forms of baking that exists. Whether your starter is a week or a decade old, you can become part of that lineage as well.

It is important that you stir the sourdough starter every day in the morning and in the evening. Feed the starter. Add 60 g flour and 60 g lukewarm water, stir well to combine, and let sit out for 24 hours.

Temperature matters

Not an ideal environment for a starter - they like it above the 68 degree range. If you don't have a warm house, I would suggest using warmer water when feeding and also being creative on something to keep it warmer.

Yes you can use sourdough discard straight from the fridge, you don't need to let it come to room temperature if you don't want to. What is this? If you are using it straight from the fridge it may be a little stiff or thick, so you'll need to ensure you mix it really well.

Can you do anything with sourdough starter discard? ›

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.

Ingredients and Substitutions

Sourdough discard: If you don't sourdough discard saved up, feel free to use active sourdough starter. If you don't have a strater, add 56 grams of flour and 56 grams of water to your dough.

Barb Alpern, one of the sourdough experts on our Baker's Hotline, advises callers to discard the hooch if it's darkened to black. “At this point, the liquid is all sourdough waste products and isn't going to contribute anything very positive to the starter.

The best flour blend for creating a new sourdough starter is 50% whole-meal flour (whole wheat or whole rye) and 50% bread flour or all-purpose flour. I recommend a 50/50 mix of whole wheat flour and bread flour. Why do you need to use these two types of flour?

This black liquid (hooch) is actually normal and doesn't necessarily mean your starter has gone bad. If there is no mold or orange/pink streaks in the sourdough starter, it is still ok to use. You essentially have two choices for the black liquid: keep it or skim it and throw it away.

You can store sourdough discard in the fridge for up to 2 weeks. It's fine to leave it on the counter for up 24 hours, however if you aren't planning to use it straight away it's always better to store it in the fridge.

I recommend keeping sourdough discard for about one week, but I do know others who keep it for much longer. After one week, there is a higher risk of mold or bad bacteria growing on the discard.

Yes, you can overfeed your sourdough starter. Audrey explains: “Every time you add more flour and water, you are depleting the existing population of natural bacteria and yeast.” If you keep adding more and more, eventually you'll dilute the starter so much that you'll just have flour and water.