You did everything right. The starter was bubbly, the dough felt alive, bulk fermentation looked textbook, and the shaped loaf went into the banneton looking like a proper boule. Then this morning you tipped the basket over and… half the loaf stayed behind. A ragged crater where the smooth top should be, dough hanging off the coils like it never wanted to leave.
It’s one of the most deflating moments in sourdough — an entire overnight proof, wrecked in the last two seconds. The good news: sticking is almost never bad luck. It’s a small number of fixable causes, and once you know which one is biting you, the fix takes minutes.
First, what a banneton is actually doing
A banneton (or brotform) isn’t magic — it’s a shaping mold that wicks a little moisture from the dough’s surface while it holds a round or oval shape during the final proof. That slightly drier skin is what gives you a clean release and a crust that scores well and springs in the oven.
Sticking happens when that surface either never dries, or gets glued to the basket by wet flour paste. So the whole game is: keep the dough’s outer skin taut and lightly floured with the right flour, and don’t leave it in there long enough (or wet enough) to weld itself to the coils.
Cause #1: You’re using the wrong flour
This is the single most common culprit. If you dust your banneton with regular wheat flour and the dough is anything above a moderate hydration, the flour absorbs water, turns to paste, and gelatinizes into glue. It feels like you floured the basket, but you actually made wallpaper adhesive.
The fix is white rice flour. Rice flour barely absorbs water and doesn’t gelatinize the way wheat does, so it stays gritty and slippery against the coils. Many bakers use a 50/50 mix of rice flour and their usual flour for a balance of grip and release, but if you’re fighting stickiness, go straight rice flour until it’s solved.
Cause #2: You didn’t flour enough — or floured unevenly
A light, polite dusting isn’t enough for a new or humid basket. You want a genuine, even coat that gets down into the grooves of the coils — those grooves are exactly where dough anchors itself.
- Sprinkle rice flour generously, then tilt and rotate the basket so it coats the walls, not just the bottom.
- Tap out the loose excess. You want the coils lightly filled, not a snowdrift.
- Pay special attention to the sides and rim — a loaf that slumps outward grabs the walls first.
If a spot looks bare and shiny, it will stick. Re-dust before the dough goes in, not after it’s already proofing.
Cause #3: A brand-new basket that hasn’t seasoned
New cane and rattan bannetons are thirsty and grippy. Out of the box, they stick to almost everything. They need seasoning — a few uses to build up a thin film of flour in the coils that acts as a permanent non-stick layer.
To speed it up: mist the empty basket very lightly with water, dust it heavily with rice flour, and let it dry completely (overnight is ideal). Do this once or twice before the first bake. After a handful of loaves, most baskets release far more easily and need less flour each time. Never wash a seasoned banneton with soap — just knock out the crumbs and let it air-dry.
Cause #4: Weak shaping — the skin is too slack to hold itself
Even a perfectly floured basket can’t save a loaf with no surface tension. If your shaping leaves a loose, slack blob, the dough relaxes and spreads sideways into the coils during proof, pressing itself into every groove. More contact, more sticking — and a flatter loaf on top of it.
Build a taut skin: after pre-shaping and a bench rest, do a final shape that drags the dough across the counter to tighten the outer surface until it feels like a smooth, drum-tight balloon. That taut skin holds the loaf up off the coils and gives the flour a dry surface to sit on.
Cause #5: The dough is too wet or overproofed
Two moisture problems, same result. Over-hydration for your flour and skill level means a wetter, stickier surface that no amount of rice flour fully tames — if you’re new to a recipe, drop the hydration 3–5% and dial it back up as your handling improves.
Overproofing is sneakier. A loaf left too long in the final proof degrades its own gluten, goes slack and sticky, and welds to the basket. If your dough looks puffy and lifeless and sticks badly, you likely overshot the proof — shorten it, or cold-proof in the fridge, which firms the surface and makes turnout dramatically easier. A cold loaf straight from the fridge is the single easiest thing to release.
The clean-release turnout: technique that seals the deal
Even with everything right, a hesitant, wobbly turnout can tear a loaf. Do it in one confident motion:
- Have your parchment (and Dutch oven lid or peel) ready before you touch the basket.
- Lay the parchment over the top of the banneton, put your hand or a board on top, and invert the whole thing in one smooth flip.
- Lift the basket straight up. If a spot clings, don’t yank — gently peel the coil back and let gravity do the rest.
- Score immediately and get it into the oven while the surface is still taut.
Cold dough, a well-floured seasoned basket, rice flour, and a decisive flip — stack those and sticking basically disappears.
Your quick sticking-diagnosis checklist
- Using wheat flour to dust? Switch to white rice flour today.
- Light dusting? Go heavier and get into the coils; tap out the excess.
- New basket? Season it a couple of times before you trust it.
- Loaf slumping and spreading? Tighten your final shaping.
- Wet, puffy, lifeless dough? Lower hydration or shorten the proof — and cold-proof for an easy release.
Sticking feels like a betrayal after all that waiting, but it’s one of the most solvable problems on the whole sourdough journey. Fix the flour, fix the tension, respect the proof — and that gorgeous coil pattern lands on your crust instead of staying in the basket.
Want to see the seasoning trick and a clean one-motion turnout in real time? The full walkthrough lives on the LoafLovers YouTube channel, and our free sourdough troubleshooting guide has the shaping and proofing fixes side by side — grab it and never lose another loaf to the basket.
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