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 sourdough starter is starter that has been fed water + flour and allowed to sit until it is bubbly and about doubled in size. Sourdough discard is after the starter has peaked, and it has started to come down. It is the portion that you would typically throw away before feeding again.

It adds a delicious flavor and imparts moisture to recipes which keeps bakes tasting fresher for much longer. You can also use sourdough discard to ferment recipes which makes them healthier and easier to digest.

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.

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 your starter is well past peak (a few hours) and visibly falling, you can give it a “refresh” feeding to reactivate it.

Proportions: Here are our preferred proportions for feeding the starter: Take a smidgen of starter (5-10 grams). (Throw away the rest — or you can bake with it if it's ready!) Add to it 100g of water, at 80-85 F degrees.

It is important that you stir the sourdough starter every day in the morning and in the evening. Feed the starter.

Similar to case #2, above, discarded sourdough is used in recipes with no additional flour called for, so it can be baked immediately. The discarded starter's flour is already fermented and it adds sourdough flavor to the recipe.

Why discard half of sourdough starter? ›

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.

Store it for future baking: You can store sourdough discard in an airtight container in the refrigerator for future baking with sourdough discard recipes. When you're ready to use it, let the discard come to room temperature before using it to bake. I will keep sourdough discard in the fridge for about one week.

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.

Yes, there are actually several health benefits to using sourdough discard in your cooking and baking. Sourdough discard is rich in probiotics, which can help promote a healthy gut microbiome and improve digestion.

As part of the feeding process, most bakers discard some of their sourdough starter before adding fresh flour and water to the jar. This is done to refresh the acidity levels (think sweet vs. sour smell) and to manage its overall growth in size. This technique is crucial for successful sourdough bread.

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.

One of the amazing benefits of sourdough discard is that you can use it to create new starters, which are known as levains. These off-shoots from the mother starter can be used to experiment with different types of flour or given as a gift – there's nothing quite like sharing an entire ecosystem with your loved ones.

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.