How do I maintain my sourdough starter in the refrigerator?

To maintain a sourdough starter in the refrigerator, feed once per week following the 1:2:2 ratio maintenance method (aka, one part starter to two parts flour and water).

• Sourdough Starter Recipe
• Gluten Free Sourdough Recipe

Remove at least half the amount you will be using from the refrigerator four days before baking. Allow the starter to sit at room temperature for 24 hours, then begin feeding it with a 1:2:2 ratio (perhaps for three days before baking. This will ensure your starter is active and strong for baking.