How to Score Sourdough Bread: Patterns, Tools, and Timing
Scoring sourdough bread is one of those steps that looks purely decorative until you understand what it actually does. That single slash across the top of a loaf — or an elaborate wheat stalk pattern — is not about showing off. It is about controlling where the bread opens during baking, managing oven spring, and producing a crust that is crisp, blistered, and properly structured. Get the scoring right and your bread rises beautifully with an open, airy crumb. Skip it or get it wrong and you end up with a dense, misshapen loaf with blowouts on the sides.
This guide covers everything a beginner needs to know: why scoring matters, what tools to use, how to read your dough before you cut it, and how to build from a simple single slash toward more complex patterns when you are ready.
Why Scoring Matters More Than You Think
When a shaped sourdough loaf goes into a screaming hot oven — typically around 475°F to 500°F — the yeast in the dough has one final burst of activity before the heat kills it. This surge, called oven spring, generates gas rapidly inside the loaf. That gas has to go somewhere. If you have not created a deliberate weak point in the surface tension of the dough, it will find its own exit, usually through the side or bottom of the loaf where the surface is thinnest or least taut. That is what causes the ugly, unpredictable blowouts that plague so many beginner loaves.
A score gives the dough a controlled release point. The bread opens along the cut you made, the crust sets around that opening, and the result is the characteristic ear — that raised flap of crust — that you see on well-made sourdough. Beyond structure, scoring affects the crumb. A deep, decisive score allows the interior to expand freely, which promotes a more open, irregular crumb with the kind of large holes that make sourdough so satisfying to eat.
There is also a flavor component. The ear and any exposed interior surface that curls back during baking gets extra direct heat from the oven walls and steam environment, which drives Maillard browning and caramelization harder than the rest of the crust. That is why the ear of a well-scored loaf often tastes slightly different — more complex, a little toasty — compared to the surrounding crust.
The Tools You Need
The Lame
A lame (pronounced “lahm”) is a bread-scoring tool consisting of a thin, curved or straight razor blade attached to a handle or a small plastic wand. It is the standard tool used by professional bakers and serious home bakers alike. The curved blade — which is what you get on a traditional French-style lame — allows you to hold the blade at a very shallow angle to the dough surface, which is what produces that characteristic raised ear. The curve means the leading edge of the blade is what contacts the dough first, slicing cleanly rather than dragging.
You can buy a good lame for very little money. The Wire Monkey shop, based in the United States, makes beautiful wooden-handled lames that many home bakers swear by. The basic plastic wand-style lames available from companies like Broderie or through Amazon work perfectly well for beginners and cost only a few dollars. The blade is what matters, not the handle. Replacement blades are standard double-edge razor blades, widely available and cheap. Replace yours every few loaves — a dull blade drags through dough instead of slicing, which deflates the loaf rather than cutting it cleanly.
A Sharp Serrated Knife
A serrated bread knife works as a backup scoring tool for simple straight slashes, particularly on batards (oval loaves). It is not ideal — the teeth tend to drag slightly — but if your lame blade is dull and you have no replacement, a very sharp serrated knife moved quickly across the surface can get the job done. Do not try to use a regular chef’s knife. The drag from a smooth blade will push down into the dough rather than slicing through it.
A Straight Razor Blade
Some bakers prefer to hold a bare razor blade between their fingers for tight, controlled cuts. This gives you maximum tactile feedback and works well for decorative cuts where you want very fine lines. It is not recommended for beginners — the risk of cutting yourself is real — but it is worth knowing that many experienced bakers work this way.
Scissors
A pair of kitchen scissors or sharp craft scissors can be used to score bread in a technique popular in certain regional French traditions. You hold the scissors at a low angle to the dough and make a series of snips down the center or across the top, leaving little pointed tabs that bloom open in the oven. This technique, sometimes called the “épi” cut when done in a chain pattern on a baguette, is surprisingly effective and easy for beginners because scissors do not require the same angle precision as a lame.
Reading Your Dough Before You Cut
The single most important factor in successful scoring is knowing whether your dough is ready to score. A loaf that is under-proofed will be tight and dense, with high surface tension. It will resist the blade and tend to tear rather than cut cleanly. A loaf that is over-proofed will be slack and fragile — any scoring will cause it to partially deflate, and it will have little oven spring left to open the score properly.
The ideal dough for scoring is cold, well-proofed, and retains its shape confidently when you turn it out of the banneton. Cold dough — which you get by cold-retarding your shaped loaf in the refrigerator overnight — is significantly easier to score because the surface is firm and resistant. Most bakers who bake directly from the refrigerator without letting the dough warm up first report cleaner, more precise scores than those who score at room temperature.
To check if your dough is properly proofed before scoring, use the poke test: flour a finger and gently press into the surface of the dough about half an inch. If the dough springs back immediately and completely, it needs more time. If it springs back slowly and incompletely, leaving a slight indentation, it is ready. If it does not spring back at all, it is over-proofed and you should bake it immediately without much ceremony about the scoring pattern.
Blade Angle: The Key to Getting an Ear
The angle at which you hold your lame blade relative to the surface of the dough determines whether you get an ear or just a straight open gash. For a pronounced ear, hold the blade at roughly 30 to 40 degrees from horizontal — almost parallel to the dough surface. This shallow angle means the blade is essentially sliding under the surface skin of the dough rather than cutting straight down through it. The flap you create curls back and away from the cut as the bread bakes, forming the ear.
If you hold the blade more vertically — closer to 90 degrees from the surface — you get a cut that opens symmetrically, expanding outward on both sides like a simple split. This is useful for decorative patterns where you do not want a pronounced ear because a raised flap would interfere with the design.
Speed matters too. A slow, tentative stroke will drag the blade through the dough. Move the blade quickly and decisively in a single smooth motion. Think of it less like cutting through something thick and more like slicing the surface — the blade should be gone before the dough has time to react.
Simple Scoring Patterns for Beginners
The Single Slash
Start here. A single straight cut running roughly three-quarters of the length of the loaf, placed slightly off-center, is the most reliable score for a beginner. For a boule (round loaf), make the cut at about a 30-degree angle to the equator of the loaf. For a batard (oval loaf), run the cut along the length at the same shallow blade angle. This simple score produces a reliable ear and a predictable open crumb without requiring you to make multiple cuts in sequence, which multiplies the opportunities for mistakes.
The Cross Score
Two intersecting cuts in an X or cross pattern are often used on boules and give a more rustic, symmetrical bloom. Because you are making two cuts, neither one will produce as pronounced an ear — the bread tends to open evenly in all four quadrants instead. Hold the blade more vertically (closer to 90 degrees) for this pattern. It is forgiving and looks attractive on the finished loaf.
The Box Score
A square or rectangle scored into the top of a boule, with the blade held vertically, produces a structured bloom where the square opens outward like a flower. This is a reliable intermediate pattern that looks impressive but is geometrically simple to execute. Mark the four corners of your square mentally before you make any cuts, and work quickly through all four sides without hesitation.
Intermediate Patterns: Moving Toward Decorative Scoring
The Leaf or Wheat Stalk
The wheat stalk is one of the most photographed sourdough scores on social media — a central spine with angled cuts branching off each side to suggest the individual grains of a wheat head. To execute it, draw the spine down the center of the loaf first using a very shallow blade angle, then make the branching cuts at roughly 45-degree angles to the spine, working from the base upward. The branching cuts should overlap the spine slightly at the top of each cut. Done with a sharp blade on cold, properly proofed dough, this pattern bakes into something genuinely beautiful.
Geometric Patterns and Freestyle Scoring
Triangles, crescents, leaf clusters, and freestyle floral patterns are all possible on a well-proofed, cold loaf with a sharp blade. For these patterns, the blade is held vertically so cuts open evenly rather than producing ears. Some bakers use food-safe stencils —