Porland Plastic Handle forks, spoons and knives are made of 18/10 stainless steel. Suitable for washing in the dishwasher, but hand washing is recommended for long-lasting use. Dishwashing detergents without strong acidity should be used and cleaners such as bleach should never be used. Knives should be placed in a separate compartment from cutlery in the dishwasher and during storage, and should be dried with a soft cloth after washing. The soft part of the dishwashing sponge should be used during hand washing.