Many people refer to this kind of machine as a fruit juice machine. In fact, it should be called a food processor or a blender. It needs water when it is used. It works by rotating the blade at the bottom of the mixing cup at high speed and breaking the food repeatedly under the action of water.
Advantages: low price, easy to clean, can process a variety of food.
Disadvantages: the need to use water to squeeze juice, can only stir the fruit and vegetable paste.