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

FAQs

How much of your sourdough starter should you discard? ›

Experts recommend feeding a starter twice daily. And at each feeding, you hold onto 1/2 cup of your original starter, discard the rest, and then add its same weight in water and flour. With this schedule, you'd discard almost a cup of sourdough starter every day.

There is no single best ratio, but I've found a ratio of 1:5:5 fed twice daily at 12-hour intervals to produce a sourdough starter that's strong and healthy. This ratio corresponds to 20% ripe starter carryover, 100% water, and 100% flour (a mix of whole grain rye and white flour) at each feeding.

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.

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 Old Sourdough Discard? You can use old sourdough discard if it's been stored in the fridge, however, you really want to use it up within a week - 2 weeks max. It's better to use "fresh" discard in a sweet sourdough discard recipe.

Starter is most active at 75-85F. Find a warm location in your kitchen/house, use warm water during feeding, consider using a heating pad or proofing box, and monitor the temperature with a thermometer. If your schedule allows, let refrigerated starter warm up to room temp before feeding. Feed with different flour.

Place the jar at room temperature for 24 hours, until you begin to see the mixture bubbling up. It is important that you stir the sourdough starter every day in the morning and in the evening.

The longer you go in between feedings, the more acetic acid your starter will develop. This acid creates a more sour flavor.

Instead of throwing away (or composting) your excess sourdough starter during the feeding process, bake with it! Unlock the power of sourdough discard to both enhance your bakes with a subtle tang and make the most of those leftovers.

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.

Absolutely you can! Active starter can be used in the same way as sourdough discard in sweet or savory baking. You can add active sourdough starter to any recipe you would add discard to following the same calculation.

Yeast will die if exposed to temps of 60C or above (140F). It is very likely that your sourdough starter will actually die at temps lower than this. Anything above 120F (50C) would be considered too hot for a sourdough starter and will kill the wild yeast if exposed for long periods.

Sourdough bread is made using a traditional fermentation process, which relies on bacteria and yeasts to produce a compositional change from the initial ingredients into a living leavening. A vibrant sourdough culture will limit growth of harmful microbes and baking will ensure a safe final product.

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?

Discarding half is wayyyy LESS wasteful than keeping it around or “sharing” the other half with a friend because… The sourdough starter is not a viable starter until 3 to 5 days old and sometimes longer. It takes that long for the organism balance to get established.

If your sourdough starter forms hooch, mix the hooch back into the starter before you discard and feed. The only time I would consider pouring the hooch off your sourdough starter is if it has been stored in the fridge for a long time and the hooch is very dark.

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.