
A step-by-step guide to creating and maintaining a bubbly, active sourdough starter from scratch.
Combine the flours and water in a clean jar until smooth. Cover loosely and leave at room temperature.
Discard half the mixture and feed the jar with 50g flour and 50g water. Stir well and scrape down the sides.
Repeat the discard and feeding every 24 hours. The aroma may swing from sweet to sharp; that is normal while the culture stabilizes.
Once the starter doubles within 4 to 8 hours after feeding, it is strong enough to bake with. If it is still sluggish, keep going for a few more days.
Feed daily at room temperature or refrigerate and feed weekly. Before baking, give it one or two room-temperature feeds so it peaks on schedule.