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Seasonal Sourdough: Adapting Your Technique Year-Round

Learn how temperature, humidity, and seasonal changes affect your sourdough and how to adapt your baking.

Climate Baker Lisa
January 8, 2024
7 min read

Seasonal Sourdough: Adapting Your Technique Year-Round


Sourdough baking is deeply connected to the natural world. Understanding how seasons affect your starter, dough, and baking process will help you achieve consistent results throughout the year.


Spring: The Awakening Season


**Characteristics**: Rising temperatures, variable humidity, renewed yeast activity


**Starter Behavior**:

  • More active as temperatures warm
  • May need less frequent feeding
  • Perfect time to start new starters

  • **Baking Adjustments**:

  • Reduce fermentation times as activity increases
  • Watch for faster-than-expected dough development
  • Great season for experimenting with new techniques

  • **Tips**: Spring is ideal for establishing new baking routines as conditions become more predictable.


    Summer: The Active Season


    **Characteristics**: High temperatures, often high humidity, peak fermentation activity


    **Starter Behavior**:

  • Very active, may double in 2-4 hours
  • Requires more frequent feeding or refrigeration
  • Higher risk of overfermentation

  • **Baking Adjustments**:

  • Use cooler water for mixing
  • Reduce starter percentage in recipes
  • Shorter bulk fermentation times
  • Consider overnight refrigeration for final proof

  • **Hot Weather Tips**:

  • Keep starter in coolest part of kitchen
  • Use ice cubes for water in extreme heat
  • Time mixing for cooler parts of the day
  • Consider using refrigerator for controlled fermentation

  • Fall: The Transition Season


    **Characteristics**: Cooling temperatures, changing humidity, slowing fermentation


    **Starter Behavior**:

  • Gradually slowing activity
  • More predictable timing
  • Excellent flavor development

  • **Baking Adjustments**:

  • Gradually increase fermentation times
  • Monitor temperature drops closely
  • Perfect season for longer, complex breads
  • Great time for building baking skills

  • **Harvest Season Benefits**:

  • Fresh flour from new harvests
  • Ideal weather for longer baking sessions
  • Natural cooling for fresh bread

  • Winter: The Contemplative Season


    **Characteristics**: Cold temperatures, low humidity, slow fermentation


    **Starter Behavior**:

  • Sluggish activity, may take 12+ hours to peak
  • More forgiving timing
  • Requires warmer environment for activity

  • **Baking Adjustments**:

  • Find warm spots (near heater, oven light, warm water bath)
  • Increase starter percentage in recipes
  • Longer bulk fermentation and proofing times
  • Use warmer water for mixing

  • **Winter Baking Strategies**:

  • Proof box or warming drawer if available
  • Overnight bulk fermentation at room temperature
  • Weekend baking when you can monitor longer processes
  • Perfect time for enriched breads and holiday baking

  • Humidity Considerations


    High Humidity (Summer/Rainy Seasons):

  • Flour absorbs moisture from air
  • May need to reduce water in recipes
  • Longer dough development times
  • Sticky dough handling

  • Low Humidity (Winter/Dry Climates):

  • Flour gives up moisture
  • May need to increase hydration
  • Cover dough to prevent skin formation
  • Faster moisture loss during baking

  • Temperature Monitoring


    **Ideal Ranges**:

  • Starter maintenance: 70-75°F (21-24°C)
  • Dough fermentation: 75-80°F (24-27°C)
  • Final proofing: 75-85°F (24-29°C)

  • **Creating Warm Environments**:

  • Oven light (usually 80-85°F)
  • Top of refrigerator
  • Near heating vents (not directly on them)
  • Warm water bath
  • Proofing box or dehydrator on low

  • Seasonal Recipe Adjustments


    Summer Adaptations:

  • Reduce starter from 20% to 10-15%
  • Use cooler water (65-70°F instead of 75-80°F)
  • Shorter bulk fermentation (3-4 hours instead of 6-8)

  • Winter Adaptations:

  • Increase starter to 25-30%
  • Use warmer water (80-85°F)
  • Longer bulk fermentation (8-12 hours)
  • Consider adding a small amount of commercial yeast for insurance

  • Planning Your Baking Calendar


    **Spring**: Perfect for learning new techniques

    **Summer**: Focus on quick breads and pizza doughs

    **Fall**: Time for complex, long-fermentation breads

    **Winter**: Comfort baking and experimenting with enriched doughs


    The Bottom Line


    Successful year-round sourdough baking requires observation, adaptation, and patience. Keep detailed notes about what works in different seasons, and remember that your local microclimate may behave differently than general guidelines suggest.


    The key is developing a relationship with your dough that goes beyond following recipes blindly. Watch, feel, smell, and taste your way to understanding how your environment affects your bread.


    Track seasonal changes and get automated adjustments with the SourdoughAI app's climate-aware fermentation timing.