KOIOS B5100 Juicer is a slow juice extractor that uses a masticating process to extract juice from fruits and vegetables. The juicer has a reverse function that helps prevent clogging and makes it easier to clean. The cold press juicer operates quietly, allowing you to make juice without disturbing others around you. The machine is durable and efficient, making it a great investment for those looking for a high-quality juicer.