If you're looking to increase the volume of starter you have, Donna, you can simply add more flour and water to your starter at each feeding, building it up slowly until you have the volume you're looking for. For instance, you can take 1 cup (227 grams) of starter and add in 1 cup (227 grams) of water and 2 scant cups (227 grams) of flour. This will give you about 2 cups of sourdough starter. You can also increase the amount of flour and water that you mix in, say to 300 grams each. Keep in mind you want to use equal parts flour and water by weight, and you want to use "reasonable" ratio of starter to flour and water. (Try using between one to two times the amount of flour/water to starter for best results.) We hope this helps, and for more tips, check out our full Sourdough Baking Guide. Good luck! Kye@KAF

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