Wholesale Cutting Boards with Handle for Laser Engraving, Corporate Gifts, Real Estate Gift , Promotional Items The boards are made of beech wood, thickness 20mm. We supply businesses with the best boards! CARE Use one board for raw meats and one for everything else. Wash in warm water with mild soap. Never let it soak in the water. Never wash in dishwasher. Your board is double sided, use both sides. Apply an even coat of food grade mineral oil every several weeks.