A method of cutting potatoes into a plurality of pieces that includes the steps of: (a) providing a potato to a cutting implement; (b) supplying a lubricating liquid onto the cutting implement to form a liquid film over at least part of the cutting edge; and (c) cutting the potato. Also disclosed is an apparatus for cutting the potatoes comprising: a tank for holding a lubricant, an outlet conduit from the tank communicating with an in-line mixer, a water supply conduit to the in-line mixer that is arranged to form a lubricating fluid from the lubricant and water, a mixer output conduit supplying a lubricating liquid from the in-line mixer onto the cutting edge of an implement to form a liquid film over the cutting edge, and an input conduit for adding potatoes to the tank from a potato peeling device.