A good ceramic blade is about 50% harder than stainless steel. Thus, ceramic knives have started gaining popularity. The ceramic material is made of heated zirconium oxide. The process is called sintering where ceramic powder particles are bonded together.

High quality ceramic knives won’t need to be re-sharpened for years. Since they’re made of very hard materials, the blades won’t yield to the wear and tear of daily use unlike stainless steel. Ceramic also has no effect on the flavor or appearance of food. Moreover, there will be no transfer of taste or smell between different types of foods.