• Avoid excessive doses of dish washing powder,
• Avoid any contact with items made of ordinary steel (jam pot lids...),
Ensure there is sufficient rinsing liquid.
• Wash the knife blades, if possible, immediately after use to remove solids.
• Wipe the knife blades when they are taken out of the dishwasher.
• If stains remain, rub the blades with a soft cloth moistened with alcohol, rinse and dry.