First, What Is Sourdough Discard?
Sourdough discard is simply the portion of your sourdough starter that you remove before a feeding. This process is crucial for managing the size of your starter and keeping its yeast and bacteria healthy and active. While the name implies it should be thrown
away, discard is a valuable byproduct. It’s essentially unfed starter, meaning its leavening power is diminished, but it’s full of the complex, tangy flavour that makes sourdough unique. You shouldn't use discard to bake a traditional loaf of bread that relies solely on natural yeast for its rise, but it's the perfect flavour-boosting addition to a huge range of other recipes.
How to Store Discard in the Refrigerator
The most common and convenient way to store sourdough discard is in the refrigerator. Simply collect the discard in a clean glass jar with a lid that is not airtight. A weck jar or a mason jar with the lid lightly screwed on works perfectly, allowing any residual gases from fermentation to escape. You can keep adding new discard to this jar each time you feed your starter. While some bakers store it for up to a month, it's generally best used within two weeks for optimal flavour. Over time, the discard will become more acidic and sour. You might see a dark layer of liquid, called 'hooch', form on top; this is a normal byproduct of fermentation and can simply be stirred back in. However, if you see any pink or orange streaks, it's a sign of spoilage and the discard should be thrown out.
Freezing Discard for Long-Term Storage
If you don't bake with discard frequently or find yourself with an abundance, freezing is an excellent option. Freezing preserves the discard's quality and flavour for months. For easy use, portion the discard before freezing. An ice cube tray or silicone muffin mould works well for this. Once the portions are frozen solid, transfer them to a labelled freezer-safe bag or container. This allows you to grab exactly how much you need for a recipe. To use it, simply thaw the frozen discard in the refrigerator or at room temperature. Avoid using a microwave, as it can cook the starter and kill the beneficial microbes.
Delicious Savoury Uses for Your Discard
Discard’s tangy profile shines in savoury dishes. One of the most popular uses is for crackers. With just a few ingredients, you can bake crispy, flavourful crackers that are perfect for snacking. Another fantastic option is pizza dough; adding discard creates a crust with a wonderfully chewy texture and complex flavour. You can also use it to make soft, pliable tortillas or even homemade pasta, adding a subtle tang that elevates the final dish. Because older, more sour discard complements savoury notes well, these recipes are a great way to use up a jar that's been in the fridge for a week or two.
Sweet Treats with a Sourdough Twist
Don't overlook discard for sweet baking. It adds a background tang and tenderness that balances sweetness beautifully. Sourdough discard pancakes and waffles are a classic choice for a reason—they are fluffy, delicious, and a great way to use a large amount of discard at once. The discard can also be incorporated into muffins, scones, biscuits, and quick breads like banana bread. For these sweeter applications, it's often best to use fresher discard (less than a week old) for a milder tang that won't overpower the other flavours. You can even make incredible brownies and chocolate chip cookies, where the acidity of the discard enhances the richness of the chocolate.
