If you do what I did, it is very easy to figure out your veggie weight. For example, I had 55 oz. of veggies. 10 cups of soup means that each cup is 5.5 oz of veggies. Very simple. You can make it thicker or thinner, however you like it, I would just keep track of how many cups of soup you take out of the blender with each batch so you can calculate.