Storing Sourdough Starter
By feeding your sourdough starter regularly, you can keep it on hand indefinitely to add tang to your baked favorites. If you do not use your sourdough starter for a period of 10 days, stir in 1 teaspoon brown sugar. Add more brown sugar every 10 days until you use the starter.
You may notice that your starter becomes thicker over time. You will not need to adjust your recipes to compensate for the extra thickness; however, you may find yourself needing the lesser amount of flour when a range is given in yeast bread recipes.