Juicer two types of juicers are available: reamers and extractors.Reamers,also known as citrus juicers,remove juice from citrus fruits.They can be manual or electric.Manual modules use a level arm to squeeze the fruit with increased pressure.They are most often used to prepare small to moderate amounts of juice for cooking or beverages. Juice extractors are electrices that create juice by liquefying raw fruits,vegetables and herbs.They use centrifugal force to filter out fiber and pulp.