Soft Pretzel Batch Calculator

Soft pretzels use a lightly enriched dough of flour, water, yeast, butter, sugar and salt, and get their flavor and dark mahogany crust from a brief dip in an alkaline bath just before baking. At 64% hydration the dough sits in the standard band on the baker’s percentage calculator, a little wetter than bagel dough and a little drier than a sandwich loaf.

Dough Weight Per Pretzel

The total dough weight depends on the pretzel size:

Pretzels lose about 15% of their weight in the oven to evaporation, which is where the finished column comes from. The calculator reports it per pretzel so you can check against a shop-bought one.

Standard Soft Pretzel Dough Formula (Baker’s Percentages)

Baker’s percentages express every ingredient as a percentage of the flour weight:

Total dough yield from 500g flour: approximately 872g. This makes roughly 7 or 8 standard pretzels at 110g each.

Alkaline Bath: The Secret to Real Pretzels

The alkaline bath drives the Maillard reaction on the surface, which is what gives pretzels the deep brown color and that particular chewy skin. Skip it and you have baked a bread roll in an interesting shape.

Food-grade lye (sodium hydroxide) bath: Ratio: 30 to 40 g NaOH per liter of water, so a 3 to 4% solution. Dip time: 20 to 30 seconds. This is the traditional German bakery method and it produces the most authentic flavor and color.

Baking soda bath (safer alternative): Ratio: 60 to 70 g baking soda per liter of water. Bake the baking soda first, an hour at 150°C, to convert it to sodium carbonate. That is meaningfully more alkaline and gets much closer to the lye result. Dip time: 30 to 60 seconds.

Worked Example: 12 Standard Pretzels

Dough per pretzel: 110g, so total dough is 12 × 110 = 1,320g.

Flour needed: 1,320 ÷ 1.744 = 757g, where 1.744 is the sum of the baker’s percentages divided by 100.

Full recipe, straight off that 757g:

• Flour: 757 g
• Water: 484 g (64%)
• Instant yeast: 10.6 g (about 1.5 packets)
• Butter: 30 g
• Brown sugar: 22.7 g
• Salt: 15.1 g

Do not round the flour up to 760 first. It is a small error on one batch and it grows with the batch, and the whole point of baker’s percentages is that they scale cleanly.

Lye bath at 3.5%: 35g of food-grade lye per liter of water. You need enough depth to dip a pretzel, which is typically 3 liters for a batch of 12, so 105g of food-grade NaOH in 3 liters of cold water.

Baking Temperature and Time

• Standard: 220°C (425°F) for 12 to 14 minutes
• Mini or snack: 220°C for 8 to 10 minutes
• Large: 210°C (410°F) for 15 to 18 minutes

Brush with melted butter immediately after removing from the oven. Sprinkle with coarse salt (pretzel salt or flake salt) before baking while the surface is still wet from the lye dip.