Hi Marcia. For a healthy starter, you want to feed it with equal amounts of water and flour. So if you want to feed the 8 oz, you'd need to feed it with 8 oz flour and 8 oz water, leaving you with a total of 24 oz.
Following the formula of 4 oz water, 4 oz flour, and 4 oz starter, that gives you 8 oz for your recipe plus 4 oz leftover to feed and keep going. If you need more than 8 oz, simply increase all of the starter components (flour, water, and starter) equally. If your recipe calls for 16 oz, you'll want to make at least 20 oz so you have 4 oz left over to feed, so let's make it simple and round up to 21 oz, and feed 7 oz of your starter with 7 oz flour and 7 oz water. Your starter will be ripe and ready to go when it's bubbly and had about doubled in size. This usually takes between 2 and 16 hours depending on the health and vigor of your starter. If you have any other questions, our free and friendly Baker's Hotline is available at 855-371-BAKE (2253) or through chat and email on our website so always feel free to reach out. Kindly, Annabelle@KAF
July 10, 2018 at 1:06pm
In reply to Weekly I feed my starter, removing 8 oz. and leaving 4 oz. I so… by Marcia (not verified)