This is the best sourdough starter I have ever made. Keep it fed, and keep it happy until you use it again, and again, and yet again!
To renew starter after using portions
ALWAYS stir Sourdough Starter with a wooden or silicon spoon. Do not use a metal spoon.
Or use 2 cups all-purpose flour, leveled and unsifted, instead of whole wheat and all-purpose flours.
Some may want to halve this recipe. If that is the case, remember that half of 3/4 cup is 6 tablespoons or 1/4 cup + 2 tablespoons. Half of 1 1/2 cups is 3/4 cup.
After mixing, the starter may be kept in a cold oven with the oven light on to produce an ideal climate for bacteria and yeasts to take hold.
Before using the starter for baking, remove it from the refrigerator several hours before baking to bring it to room temperature.
Photo credit: (c) Can Stock Photo / urbanlight
Find it online: https://simplygreatrecipes.com/sourdough-starter/