Ceramic knives are excellent for slicing through a variety of foods, making thin slices an easy task. However, use on harder materials, such as bones and hard textured foods may result in chipped or broken blades, due to the hard and rigid blade materials that are not as flexible as more common metals. Also, if the blade hits or is dropped accidently on a hard tile floor, it may chip part but will not shatter it. Factory repair of the blade is an option if the blade becomes damaged. Ceramic knives will not need to be sharpened as often as metal knives, but they will require a qualified person to do the sharpening who understands working with ceramic materials.