Why your sourdough has no ear, and how to get one

A sourdough with no ear usually comes from a shallow, hesitant score on dough that has proofed too long, baked without steam, or both. The ear is a flap of crust that peels back and lifts where you cut. To get one, make a single confident slash at a low angle, trap steam for the first part of the bake, and bake the loaf a touch younger. All of it is fixable.

What an ear actually is

When you score the top of the loaf at a shallow angle, you cut a thin lip of dough. As the loaf springs in the oven, gas pushes under that lip and forces it up and outward before the crust sets. That raised, curling flap is the ear. No lip, no spring, or a crust that sets too early, and the score just opens flat with no lift.

Shallow or timid scoring

The most common reason for sourdough with no ear is a cut that is too shallow or made with a sawing, uncertain hand. A flat, vertical cut opens like a slit and stays flat.

• Use one clean slash, not a grid or a pattern. A single line gives the spring somewhere to go.
• Hold the blade at about a 30 degree angle to the surface, almost lying flat against the dough. That low angle is what creates the lip.
• Cut about 0.5 to 1 cm (a quarter to half an inch) deep in one smooth motion. Commit. A scared cut never lifts.

A bench knife or kitchen knife will not do this well. Use a lame or a bare razor blade, and swap the blade once it starts dragging. A dull edge tears the surface instead of slicing it.

Over-proofed dough will not lift

A loaf that has gone too far in proofing has spent its gas and slackened its gluten. There is no force left to push the ear open, so even a perfect score stays flat.

Watch the dough, not the clock. After shaping, a cold proof of 12 to 16 hours in the fridge at around 4 C (39 F) firms the surface and makes scoring cleaner. The poke test still applies: press a floured finger in about 1 cm, and if the dent springs back slowly and only part way, it is ready. If it stays put and the dough feels loose, you have over-proofed. Bake it a little younger next time. Slightly under is better than over for ears. Times here are estimates, so judge by feel.

For more on reading the rise, see what is bulk fermentation.

No steam, no spring

Steam keeps the crust soft for the first 15 to 20 minutes so the loaf can expand and the ear can open. A dry oven sets the crust early and locks the score shut.

• Bake in a preheated Dutch oven with the lid on for the first 20 minutes, then uncover to brown.
• No Dutch oven? Add a tray of boiling water or a few ice cubes on a hot pan below the loaf, and bake hot, around 245 to 250 C (475 to 480 F).
• Score cold dough straight from the fridge. A firm, chilled surface holds a clean cut and slows the crust enough for the spring to do its work.

Quick diagnosis

What you see	Likely cause	First fix
Score opens flat, no lip	Cut too shallow or vertical	One 30 degree slash, deeper
Cut tears and snags	Dull blade	Fresh razor or lame
Whole top stays flat	Over-proofed	Bake younger, watch the rise
Pale crust, little spring	No steam	Dutch oven or water tray

Change one thing per bake. Get the confident cut and the steam right first, then fine-tune your proof, and the ear will show up.