Sourdough Discard Baking Problems: Too Sour, Too Dense, Spreading Cookies, and Chewy Crackers
Sourdough discard is one of the best ways to use what you would otherwise throw away. It is also easy to get wrong, because discard is not a standard ingredient. It varies in age, hydration, and tang, and it does not lift a batter the way fresh yeast or baking powder does.
If a discard recipe let you down, you are in good company. This guide walks through the most common problems and what usually causes them. If your trouble is with the starter itself, see our guide to starter problems.
The Short Answer
Discard bakes go wrong in a handful of predictable ways. Old discard tastes more sour, so use fresher discard or add a little sweetness. Discard does not provide much lift, so most recipes rely on baking soda or baking powder to do the rising. And because discard is wet, weigh it rather than measuring by the cup so the batter or dough has the right texture.
Start Here: What Did Your Discard Bake Do?
- It tastes too sour or sharp. Jump to Cause 1.
- Pancakes, waffles, or muffins came out dense or flat. Jump to Cause 2.
- Cookies spread into thin puddles, or turned out cakey and puffy. Jump to Cause 3.
- Crackers are chewy instead of crisp. Jump to Cause 4.
- The discard looks gray, smells off, or has a layer of liquid on top. Jump to Cause 5.
Why Discard Behaves the Way It Does
Discard is simply starter that has not been fed recently. The longer it sits, the more acid it builds and the less active it becomes, so it adds tang more than it adds lift. Recipes written for discard usually depend on chemical leavening such as baking soda, which reacts with the acid in the discard to produce bubbles. Discard is also a mix of flour and water, so when you add it to a recipe you are adding both, which can change the texture if you measure carelessly.
Discard Baking Problems, Cause by Cause
Problem: Cause 1
The bake tastes much more sour or sharp than you expected.
The Fix
Use younger discard, ideally less than a week old, and avoid discard that has been sitting for weeks. A little extra sugar or a splash of vanilla can balance tang in sweet bakes. Baking soda also mellows the sourness as it reacts with the acid, so make sure the recipe includes it.
Problem: Cause 2
Pancakes, waffles, or muffins are dense and flat, sometimes gummy.
The Fix
Discard alone will not make a batter rise. Check that your baking powder or baking soda is fresh, because old leavening loses strength. Mix the batter only until the dry flour disappears, since overmixing makes baked goods tough. Let pancake batter rest for 5 to 10 minutes so the flour hydrates, and cook on a properly preheated griddle.
Problem: Cause 3
Cookies spread too thin, or turned out cakey instead of chewy.
The Fix
Weigh the discard. Too much discard adds extra water and flour, which can lead to spreading or cakey texture. Chill the dough for 30 to 60 minutes before baking, and make sure your butter is the right temperature. For thicker cookies, see the dough tips in our chocolate chip sourdough cookies.
Problem: Cause 4
Crackers are chewy or bendy instead of crisp.
The Fix
Roll the dough thinner and more evenly, and bake until the crackers are deeply golden at the edges. If some are done before others, remove the finished ones and put the rest back. Let them cool completely on a rack, since crackers crisp as they cool, and store them in an airtight container.
Problem: Cause 5
The discard looks gray, has a layer of liquid on top, or smells strange.
The Fix
A gray liquid layer is called hooch and is harmless. It means the discard is hungry. Stir it in or pour it off and use the discard, though it will taste tangier. But if you see pink, orange, or fuzzy growth, or the smell is rotten rather than sour, throw the whole container away and start fresh.
Desi’s Note
Think of discard as an ingredient with a personality. Taste it before you bake with it. If it tastes pleasantly tangy, it will be great in pancakes. If it tastes harsh, balance it or bake something with strong flavors.
Quick Answers
How long does discard keep? Stored in the fridge, discard keeps for a couple of weeks, though the flavor gets stronger the longer it sits.
Can I freeze discard? Yes. Freeze it in small portions and thaw in the fridge before baking.
Can I use discard in a regular recipe? Yes, but reduce the flour and liquid to account for what the discard adds, and keep the leavening.
Related Reading
- Sourdough Discard Pancakes
- Chewy Sourdough Discard Chocolate Chip Cookies
- Rolled Sourdough Discard Cheese Crackers
- Feeding Schedule and Discard Recipes
Treat discard like any other ingredient: taste it, weigh it, and give it what it needs.
More Resources
Looking for a printable reference? Browse all six Printable Quicksheets, or dial in your own numbers with the Sourdough Calculator.
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