"Masticate" means "chew," and that's essentially how our slow juicers process ingredients. Masticating juicers crush and press ingredients to extract juice, similar to how we chew our food. This is in contrast to centrifugal juicers, which use a spinning blade to grate ingredients. Centrifugal juicers generate heat and air, which can damage nutritional properties of the juice. Masticating juicers keep the maximum amount of nutrients intact.