Some ingredients which are rich in beta-carotene, such as carrots, can cause heavy staining both on steel and on plastic parts of Cutter. To remove those stains efficiently without harming the disc, rub the stained parts with vegetable oil using a cotton ball or some kitchen paper, then wash normally with water and detergent. Please make sure you always handle the disc by the plastic hub when doing this. Do not use bleach to clean any Cutter part.
