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Sourdough Recipe Calculator — Baker's Percentages

Scale sourdough recipes by dough weight. Calculate hydration, starter, and salt using baker's percentages.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Grundrezept

75% Hydration: 500g Mehl, 375g Wasser, 100g aktives Anstellgut, 10g Salz. Das Anstellgut muss auf dem Hoehepunkt sein (verdoppelt in 4-6h). Hydration bestimmt die Krume: 65-70% = kompakte Krume, 75-80% = offene Krume, 85%+ = sehr feucht. Deutsches Weizenmehl Type 550 oder 1050 funktioniert hervorragend.

Sauerteigkultur

Deutschland hat die groesste Brotvielfalt der Welt (3.200+ Brotsorten, UNESCO Kulturerbe). Die Sauerteig-Community waechst online rasant. Roggen-Sauerteig ist der deutsche Klassiker (fuer Roggenbrot zwingend noetig).

⚡ CalcWolf Insight

The most common sourdough failure: under-fermentation (dense, gummy crumb) or over-fermentation (flat, sour, collapsed). The fix is not a different recipe — it is learning to read your dough. The "poke test" (poke the dough; if it springs back slowly, it is ready) is the single most important skill in sourdough baking.

Frequently asked questions
Wie viel Anstellgut fuer 1 kg Mehl?
15-20% des Mehlgewichts. Fuer 1 kg: 150-200g aktives Anstellgut.
Welches Mehl?
Weizen 550 oder 1050. Roggen 1150 oder Vollkorn. Deutschland hat die praeziseste Mehl-Typisierung der Welt.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
🐛 Report a Calculator Error
Found a bug or outdated data? Reports go directly to Kevin and are reviewed personally.