Making a Sourdough Starter For the First Time? Here's a Daily Guide

• On day 10, I stirred the starter, discarded half (around 4 ounces), and fed it 1/2 cup white-wheat flour and 1/4 cup filtered water, mixing it up so there was no dry flour left.

After several days of minimal activity, day 10 was when the sourdough starter finally started coming back to life with bubbles and rise.