How to Store Sourdough Starter in the Fridge (The Right Way) Not baking every day? Your sourdough starter can safely rest in the fridge without losing strength — if you store it correctly. Here’s how 👇 1️⃣ Feed before chilling Always feed your starter (1:1:1 starter, flour, water) and let it start bubbling. A fed starter survives cold storage much better. 2️⃣ Use a clean jar & loose lid Transfer to a clean glass jar. Cover loosely — never airtight. Starters need a little breathing room. 3️⃣ Sto