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How to Revive a Weak Sourdough Starter

If your starter looks sad and lifeless, don’t worry—this gentle routine can bring it back to life in just a few days. Stick with it, and you’ll see bubbles, rise, and that tangy smell again soon!

Equipment

  • A clean jar
  • Whole wheat or rye flour (for extra strength)
  • Lukewarm water (not hot!)
  • Kitchen scale (optional, but makes things easier)

Instructions

  • Daily Routine (Do this morning and evening)
  • Discard Most of Your Starter: Scoop out and throw away all but 1 tablespoon of your starter. This gives the new feeding room to grow and keeps your starter fresh.
  • Feed It 75g whole wheat or rye flour, 25g lukewarm water.
  • Mix it well until it’s smooth and thick, like a thick pancake batter.
  • Keep It Warm.
  • Keep Going for 3–5 Days

Notes

Your starter loves warmth. Aim for about 75°F (24°C). Try these spots:
  • Inside the oven with the light on (oven off!)
  • On top of the fridge
  • Near a warm appliance or wrapped in a towel
 
Feed your starter this way twice a day. You should start to notice:
• Bubbles forming
• A cleaner, sour smell
• It rises higher and faster after feeding
When It’s Ready to Bake:
Look for these signs:
• Doubles in size within 4–6 hours of feeding
• Smells pleasantly sour (like yogurt or fruit)
• Full of bubbles
• Passes the float test (a spoonful floats in water)
Pro Tip: While reviving your starter, use the discard to make quick recipes like pancakes, crackers, or muffins—no waste, and super tasty!