How much wheat grass is in 1oz of wheat grass juice?

One ounce of wheatgrass juice typically contains the juice extracted from about 1 to 1.5 ounces of fresh wheatgrass. The amount can vary slightly depending on the juicing method and the juicer used. Generally, it takes approximately 10 to 15 grams of fresh wheatgrass to yield 1 ounce of juice.