You feed a starter, you pour half away, and something in you objects. That's the whole reason this site exists. The good news is that discard is not a waste product you're rescuing out of guilt — it's a genuinely useful ingredient with a mild tang, and a lot of things taste better for it.

The problem is that most lists of discard recipes are organised by the recipe. That's backwards. When you're standing at the counter with a jar in your hand, you have two constraints: how much discard you're holding, and how much time you're willing to spend. So that's how this page is sorted.

First, the only rule that matters

Discard is just flour and water that has been sitting with wild yeast and bacteria. In a recipe, it behaves like equal parts flour and water by weight — a 100g discard contributes roughly 50g flour and 50g water. Everything else on this page follows from that one fact. If you want the arithmetic in full, it's in the substitution guide.

Sorted by how much discard you have

About half a cup (120g)

The awkward amount. Too little for bread, too much to ignore.

  • Pancakes or waffles — the classic landing spot. Half a cup disappears into a batch and adds a tang that maple syrup loves. The pancake edition has both an overnight and a same-morning version.
  • A mug cake — one portion, four minutes, no bowl to wash.
  • Thickening a soup or stew — stir it in near the end. It won't taste sour; it will taste like the soup, slightly rounder.

One cup (240g)

The most common amount, and the sweet spot.

  • Crackers — the recipe that converts sceptics. One cup, rolled genuinely thin, keeps two weeks. Full method here.
  • Banana bread or muffins — the discard replaces some of the flour and liquid and makes the crumb noticeably more tender. Banana bread edition.
  • Pizza dough — same-day, no long ferment. The same-day method.
  • Pasta — hand-rolled, no machine required. Pasta edition.

Two cups or more (480g+)

You went away for a fortnight, or you feed a big starter. This is the jar-emptying tier — and it's covered properly in recipes that use a lot of discard.

  • Focaccia — the single most efficient way to move a large amount. Dimpled discard focaccia.
  • A batch of crackers, then freeze the dough — crackers scale linearly and the raw dough freezes well.
  • A zero-waste week — the edition that plans a whole week around using every gram.

Sorted by how much time you have

| You have | Make | |---|---| | 10 minutes | Mug cake, or stir it into pancake batter | | 30 minutes | Crackers, flatbread, a quick loaf | | 1–2 hours | Pizza dough, pasta | | Overnight (mostly hands-off) | Focaccia, overnight pancake batter |

If time is the binding constraint, the quick discard recipes guide is sorted entirely that way.

Cold discard, straight from the fridge

You can use it cold. It will behave slightly differently — cold discard is stiffer and slower to hydrate, so a batter mixed straight from the fridge can look lumpier than one made with room-temperature discard. Give it five minutes to sit after mixing and the lumps generally sort themselves out.

For anything where the discard is providing lift (pancakes, quick breads), letting it come up to room temperature for thirty minutes makes a visible difference to the rise. For anything where it's providing flavour and hydration only (crackers, pasta, pizza), cold is fine and nobody will know.

The one that surprises people

Discard is not only for baking. It makes a genuinely good batter for frying — the tang cuts through fat in a way plain flour-and-water doesn't. Thin it to the consistency of double cream, dip sliced vegetables, fry until the coating sets. It's the same principle as a tempura batter, with more flavour.

What discard isn't

It isn't leavening. A recipe that relies on discard alone to rise will disappoint you, because the yeast population in unfed discard is sluggish and the acidity is working against gluten structure. Every recipe on this site that needs lift uses baking powder or soda alongside — that's not a shortcut, it's the correct approach. If you want discard to do the lifting, you need to feed it first, at which point it isn't discard any more. That distinction is worth understanding properly: see discard vs starter.

Where to go next