Sourdough Discard: What It Is, and What to Actually Do with It

If you've started a sourdough starter, you've run into discard, that portion you throw out before every feeding. And if you're anything like me, you stood over the trash the first few times feeling weirdly guilty about it. Good news: you don't have to throw it away. Discard is one of the best free ingredients in your kitchen, once you know what it actually is.

What discard even is

When you feed a starter, you keep a small amount and add fresh flour and water. The part you remove first is the discard. It's just fermented flour and water. It's not spoiled, it's not waste, it's the same stuff as your starter, only it hasn't been fed recently so it won't rise on its own. That last part matters, and it's the whole trick to using it well.

The rule that makes discard make sense

Because discard won't lift a loaf by itself, you use it in things that get their rise from something else, or don't need to rise at all. Pancakes and waffles (the baking soda does the lifting). Crackers and flatbreads (no rise needed). Muffins, banana bread, and quick breads (baking powder). Anything where you want a little tang and a use for that half-cup in the fridge.

You can also just save it. Keep a jar in the fridge and add each day's discard to it. It'll happily hang out for a week or two until you've got enough to bake with.

Start here: discard crackers

This is the recipe I point every beginner to first, because there's no rise, no waiting, and almost no way to ruin it. If you've never used discard before, make these tonight.

• Heat the oven to 350°F.
• Stir together 1 cup discard, 2 tablespoons olive oil, and ½ teaspoon salt. It'll be a loose paste.
• Spread it as thin as you can on parchment without tearing. Thin is what makes them crisp.
• Sprinkle flaky salt and any herbs you like, then score into squares with a pizza cutter.
• Bake 20 to 25 minutes, until the edges are golden and the middle doesn't bend.
• Let them cool completely. That's when they actually crisp up.

That's it. You just turned the thing you were about to throw away into a snack.

A few beginner questions, answered

• Can I use discard straight from the fridge? Yes. Cold is fine for these recipes.
• How old is too old? If it smells sharp or boozy, it's still fine to bake with, that's just fermentation. If it has pink or orange streaks or fuzz, toss it.
• Do I have to discard at all? Once your starter is established and you're baking often, you can feed smaller amounts and barely discard. Early on, discarding is normal.

Discard stopped being a guilt trip for me the day I realized it's just an ingredient I was already paying for. Crackers were the gateway. After that it's pancakes on Saturday, a quick flatbread with dinner, banana bread when the bananas turn. None of it has to be perfect. Homemade sourdough something is better than no sourdough anything.

Loved the crackers? They're one of twelve. The Discard Dozen is our no-waste recipe pack, one per page, each with a no-shame note in case yours comes out a little rustic.