Skip to main content
Back to Library
Guide

Sourdough Fermentation Guide

Wild yeast starter used to leaven bread with complex flavor.

Fermentation Guide

Ingredients & Equipment

  • Flour (whole grain for strength)
  • Filtered water
  • Clean jar and scale

Step-by-Step Method

  • Build starter over 5-7 days with daily feedings
  • Maintain starter at room temperature
  • Use for dough once it doubles reliably
  • Bulk ferment, shape, and proof bread

Timing & Readiness

  • Starter doubles in 4-8 hours when active
  • Bulk ferment 3-6 hours depending on temp

Storage & Serving

  • Refrigerate starter if not baking daily
  • Feed weekly in the fridge

Watchouts

  • Weak starter often needs more warmth
  • Use filtered water to avoid chlorine

Disclaimer: This tool provides educational guidance only. When in doubt, always err on the side of caution and discard questionable ferments. We are not responsible for food safety decisions.

Need Help With Your Ferment?

Get personalized guidance based on your specific situation.

Start Diagnosis
Need a quick check?Quick Diagnose