Once you've successfully created your own sourdough starter, you'll want to keep it healthy with regular feedings. If you bake a lot of sourdough treats you may choose to keep your starter on the counter, at room temperature. While this means feeding it twice a day, it also means your starter's always ready to go when you are. If you're a more casual sourdough baker stash your starter in the refrigerator, where you'll need to feed it just once a week.