There are basically two types of juicers: Centrifugal and Masticating.
Centrifugal Juicers: The Centrifugal juicers grate up the fruit or vegetables and use centrifugal force (that is why they spin around so fast) to fling the pulp and juice to the outside walls of the juicer where it is filtered and flows out. Centrifugal force is felt when you drive around a corner in your car too fast and everybody is pulled towards the far side. The pulp left by juice-making with a centrifugal juicer is typically moist because not all the juice is extracted.
Masticating Juicers: The masticating juicers process and reprocess the fruit by chewing and breaking the cell walls of the vegetables and fruits. (It is called masticating when a goat or cow chews their cud.) This masticating process puts more fiber, enzymes, vitamins, and trace minerals into the juice.
Juice made in a masticating juicer will be more full-bodied and richer in color than juice produced by centrifugal force.
Both the Green Star Juicers and the Champion Juicers are masticating Juicers. The difference is in mastication and extraction of the Juice. The Champion Juicer has a rotating shaft with small "teeth": on it that tear into the vegetable or fruit as it is "fed" into the juicer. These "teeth" also move the fiber and juice down the shaft and with pressure the juice falls through a screen while the fiber continues down the shaft and comes out the front into a bowl. By contrast the Green Star Juicer extracts the juice purely by pressure. The carrot, wheat grass, sprouts, spinach, berries or whatever you "feed" into the juicer will experience pressure that breaks down the cell walls of the fruits and vegetables and releases the juice. The Green Star Juicer produces a juice at ambient temperature and is better for juicing grasses, sprouts and lettuces such as spinach. It takes a little more time to clean, however. We prefer the Champion juicer for large carrots and other root vegetables. They are chewed up faster and with less effort, than in a Green Star Juicer.
Both juicers are manufactured by reputable companies who stand behind their product. Both make excellent juices, and are well build. Our Champion Juicer is now 25 years old and works great. It is wonderful when appliances are built this well!
