In many ways, food processors are comparable to blenders. The key distinction is that food processors, as opposed to fixed blades, use interchangeable blades and disks (attachments). Furthermore, their bowls are larger and shorter, which is a better form for the solid or semi-solid items that are typically processed in a food processor. Unlike a blender, which requires a specific amount of liquid for the particles to move around the blade, a food processor usually requires little or no liquid to operate.