These “Eco-Friendly” Cutting Boards are made from reclaimed Corian Solid Surface material that was to be dumped in a landfill. Corian Solid Surface is the most hygienic and sanitary surface material available today, making it an excellent material for cutting boards. The solid and nonporous surface will not allow bacteria, stains or odors to penetrate it. It is dishwasher safe, but simply rinsing with soap and water is all that is needed to sanitize your cutting board. Bleach or harsh chemicals are not necessary.