The Art of Bread Scoring — Why Bakers Slash Their Loaves

The distinctive slashes on top of a sourdough loaf or baguette aren't just decorative — they're a critical step in the baking process. Scoring controls how the bread expands in the oven, and the pattern a baker chooses is both a signature and a technical decision.

Why Score

When bread enters a hot oven, the gases inside expand rapidly (a phase called "oven spring"). Without scoring, the crust would crack randomly. Scoring creates controlled weak points where the bread can expand predictably, producing the "ear" — the lip of crust that peels back along the cut.

The Lame

Bakers score with a lame (pronounced "lahm") — a thin, curved razor blade on a handle. The blade is held at a shallow angle to the dough surface, slicing about 6mm deep. The angle determines whether the cut opens into an ear or a wide split.

Common Patterns

A baguette gets 5–7 overlapping diagonal slashes. A boule (round loaf) might get a single crescent, a cross, a square, or an elaborate wheat-ear pattern. Some bakers have developed Instagram-famous scoring designs, but the best scoring is functional first.

What the Score Tells You

A well-opened score with a pronounced ear indicates good oven spring, proper fermentation, and correct hydration. Flat, sealed scores suggest over-proofing or insufficient steam in the oven.