Masticating Juicers The Best Health Equipment That Money Can Buy! Juicers using the masticating process (which generally work at a slower speed and effectively "chew" the vegetable up, releasing more nutrients from the cell walls) have been shown to produce juice with a higher nutritional content, and to incorporate less oxygen, giving a longer shelf life.Masticating juicers work at a slower speed than centrifugal juicers. For this reason they are a lot quieter in operation.Because they operate a slower speeds when compared to centrifugal juicers masticating juicers produce juice that has less air trapped in it. This means that the juice can be kept slightly longer before oxidisation takes place. Oxidation can be seen to be taking place in apple juice when the juice turns brown due to the oxidising process |