A cook's relationship with their knife defines their efficiency and safety in the kitchen. The proper grip is the pinch grip: the thumb and index finger pinch the blade just above the handle, while the remaining fingers wrap around the handle itself. This grip provides maximum control and leverage, and works in concert with the "claw" technique on the guiding hand, where fingertips are curled under to prevent cuts. A properly held knife is also walked through the kitchen with the blade behind the body, sharp edge facing backward, or carried in a sheath — never passed blade-first to another person and never left loose in a sink.
Cuts come in standard sizes, each suited to specific purposes. The chop is an irregular, rough cut of 1/4 to 1/2 inch, while the dice is a uniform precise cube available in three sizes: small (1/4 inch), medium (1/2 inch), and large (3/4 inch). A cube cut is similar but larger, generally 1 inch or more, and is made by first forming a battonet (1/4 by 1/4 by 2 to 2.5 inch sticks) which is then cut crosswise. Mincing produces very fine pieces (1/8 inch or smaller), ideal for garlic and herbs. Slicing creates thin, flat pieces as for onions or tomatoes, while shredding uses large holes for longer strips, distinct from grating which uses small holes for fine particles like lemon zest or Parmesan.
Specialty cuts add refinement and uniformity. Julienne produces matchstick-sized strips of 1/8 by 1/8 by 2 inches, perfect for garnishes and stir-fries. Brunoise goes one step further, creating 1/8-inch cubes by julienning first and then cutting crosswise — these tiny cubes are used for fine garnishes and delicate finishes. Chiffonade creates thin ribbons of leafy greens or herbs by stacking leaves, rolling them tightly, and slicing crosswise. The tourne, a classic French seven-sided football shape about 2 inches long, and its smaller cousin the cocotte, demonstrate precision knife work prized for even cooking and elegant presentation. Uniformity in cutting ensures that all pieces cook at the same rate, eliminating the frustration of some pieces being raw while others are overdone.