Fresh squeezed juice is made with a centrifugal juicer that uses an ultra fast spinning blade to extract the juice from fruits and veggies. Because the metal blades of the centrifugal juicer have to spin so quickly, they generate heat. This heat ends up breaking down the important enzymes in the fruits and vegetables. The rapid spinning also lets air into the mix, oxidizing the juice, which only further breaks down its nutrients. This results in a freshly squeezed, pulpy juice that is refreshing and tasty, but not nearly as nutritionally potent as cold pressed juice.