everyone6 min read
Discard, without the waste
Discard sounds like waste, and it is anything but. It is the flavour-rich leftover of starter feedings, and it comes with its own family of recipes: crackers, pancakes, banana bread, cookies. If you keep a starter, you will always have discard. This guide shows you how to store it and use it well.
What is sourdough discard?
Discard is the portion of starter you remove before feeding, so your jar stays a manageable size. It is unfed, so it is not strong enough to raise bread on its own, but it is full of flavour. Collect it in one jar in the fridge, where it keeps for 1 to 2 weeks, and bake with it whenever the jar fills up: the discard recipes are made for exactly that moment.
How do I build up enough discard?
Every time you feed your starter, you're creating discard. Discard is simply the portion of starter you set aside unfed. The trick is saving it instead of throwing it away.
If you have a jar of starter already
Feed your starter as normal. Before adding fresh flour and water, scoop out the amount you want to save into a separate jar. Label it "discard" and put it in the fridge without feeding it. That's it. Do this once or twice and you'll have enough for most discard recipes.
If you're starting from scratch
Once your starter is active and established, feed it with more flour and water than usual. For example: instead of your normal ratio, feed it 1:5:5 (1 part starter, 5 parts flour, 5 parts water). Let it peak at room temperature, then scoop most of it into your discard jar before the next feed. You'll build up a substantial amount quickly.
How much discard do you need?
Most of our discard recipes use 100–150g. A single generous feeding of a mature starter produces this easily. Check the recipe before you start so you know your target.
How long does discard keep?
Discard keeps in the fridge for up to 2 weeks. It gets more sour over time as the bacteria continue producing acid slowly in the cold. Slightly more sour discard works well in recipes like crackers and pancakes. Very fresh discard (1–3 days old) is better for banana bread and cookies where you want the tang to be subtle.
Can you use discard straight from the fridge?
It's recommended to bring it to room temperature first (~30 minutes out of the fridge) so it incorporates more easily into your batter. Cold discard can cause butter to seize in enriched batters.
Can you mix discards from different feeding days?
Yes. Combining discard from different days in the same jar is completely fine. The flavour will be a blend of the different ages.
How do I use discard well?
Collect it cold
I keep discard in the fridge until I have enough for a recipe. It makes discard baking feel flexible instead of urgent.
Aim for 100 grams
I find 100 grams of discard is a useful starting amount. It opens up simple recipes like crackers, pancakes, flatbreads and muffins.
Older means tangier
Older discard often tastes more sour than fresh discard. I like using it in savoury recipes where that tang feels welcome.
Make cheap snacks
Discard is one of my favourite ways to stretch flour into easy snacks. Crackers and flatbreads feel especially satisfying because they use simple ingredients.
Batch when you can
If I have a full jar of discard, I like making a bigger batch of something simple. Some discard bakes freeze well, which makes future snacks easier.
Adjust by feel
Discard can be thicker or thinner depending on how it was fed. I often adjust a batter with a little extra flour or liquid until it feels right.
Fresh discard is mild
Fresh discard usually gives a softer flavour. I like it for sweeter bakes where I do not want too much sourness.
Trust your senses
I check discard by smell and appearance before using it. If it smells pleasant enough and looks normal, I usually feel comfortable baking with it.
Use it for fast bakes
Discard recipes are lovely when I want sourdough flavour without waiting for a full loaf. They make the starter feel useful even on busy days.
Count the water
When I adapt recipes with discard, I remember that discard already contains flour and water. That helps me avoid making the dough or batter wetter than planned.
Match the mood
Tangy discard often works beautifully with herbs, cheese, seeds or spices. Milder discard tends to blend better into pancakes, muffins and sweeter bakes.
Plan a discard day
I like having one simple discard recipe I can make without thinking. That makes starter maintenance feel less wasteful and more rewarding.