Joyoung JYZ-E20 juicer, by virtue of the unique low-speed screw-squeezing technology, is able to increase juice yield by 55% compared with traditional foil-assembly type centrifugal juice extractor. The characteristic fine-porcelain screw is forged under high temperature of 1,200° and formed by 17 processes, thus boasting extremely high hardness and density and avoiding dyeing and breeding bacteria at the same time. Besides, the screw-squeezing technology is able to extract juice with a low speed, so that all nutrition molecules could be extracted. Although the structure is deformed, but maintains complete and undamaged, thus keeping all nutrition and it is not easily resulting in juice oxidation and ensure both fresh and healthy.