Soft pretzel dough calculator
Bavarian Laugenbrezeln: a stiff 52% dough with malt and butter, dipped in lye.
Bavarian soft pretzels — Laugenbrezeln — on Breadtopia’s authentic formula: a stiff, cool dough with malt and a little fat, and the step that makes a pretzel a pretzel: a genuine lye bath.
How it works
The dough
Cold water at 52%, salt 2%, butter or lard 3% and malt 3%, with an overnight refrigerated pre-dough carrying a third of the yeast (1.2% active dry in total, Breadtopia’s own type; about 1% as instant). Knead firm and smooth — slack dough cannot hold the knot’s definition.
Shaping the knot
Roll ~100 g pieces into long, center-bellied ropes with thin arms, twist twice and press the arms onto the belly. Let the shaped pretzels dry uncovered, even briefly in the fridge — a slight skin makes the lye dip cleaner and the shine deeper.
The lye bath, safely
A 4% food-grade lye solution (40 g NaOH per liter of cold water), dip no more than 5 seconds. Wear gloves and eye protection, add lye to water (never the reverse), and work on a stainless or plastic surface. Salt the wet pretzels and bake at ~230 °C for 12–14 minutes.
Sources & methodology
Every percentage in this calculator traces to the published sources below — nothing is invented. Where respected sources disagree, the default sits inside the documented range.
- Breadtopia — Authentic German Pretzels (Laugenbrezeln) — The chosen formula: 52% cold water, lard or butter, malt, 6 g of active dry yeast on 500 g (“not instant yeast”, in its words), overnight pre-dough and the 4% lye bath.
- America’s Test Kitchen — Independently cross-checks the 4% lye concentration.
FAQ
Can I use baking soda instead of lye?
Yes — a strong baking-soda bath (ideally with baked soda) is the common home substitute. You get a paler crust and a milder flavor; the true Laugengebäck color and taste need lye at ~4%, the concentration cross-checked across serious sources.
Is handling lye at home actually safe?
With gloves, eye protection and cold water, food-grade lye at 4% is a routine bakery operation — treat it like a strong oven cleaner. Keep children away, label the container, and neutralize spills with vinegar.
Why is my pretzel pale and bready?
Dough too wet, dip too dilute, or dip skipped. The style needs the stiff 52% dough for chew and the alkaline dip for color — there is no oven temperature that substitutes for either.
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