Eating Out: Similac

Question About Preparing Similac in Batches

I prepare batches of Similac powdered formula and keep it in the fridge for when I need it. The "recipe" Similac gave me when I called their 800 number was 23oz of water to 1 level cup of powder. The yield is 26 oz of formula. This is fine now while my baby does not go through 26 oz in a day yet, but soon she will. I want to make a larger amount and not fuss with individual scoops of formula if possible, but as you bakers and cooks know, simply preparing another half a recipe (11 1/2 oz water to 1/2 cup powder) may not work right. ...