68
        
        
          Tip: Using a damp cloth and a
        
        
          little Miele dishwasher conditioning
        
        
          agent, you can easily find out if it is a
        
        
          case of a milky film on the glass or a
        
        
          case of glass corrosion. If deposits are
        
        
          easily removed, it is probably limescale
        
        
          deposits or water stains. If cloudiness
        
        
          cannot be removed, the cause is glass
        
        
          corrosion.
        
        
          Glass corrosion
        
        
          Glass corrosion is micro-fine deterioration
        
        
          of the glass surface. It is caused by
        
        
          components dissolving away from the glass
        
        
          structure. This results in a modified light
        
        
          diffusion that becomes visible as a milky
        
        
          tarnish or iridescence in different shapes.
        
        
          Glass corrosion is irreversible, meaning
        
        
          that it cannot be fixed or removed. The only
        
        
          thing to do is to replace your glasses with
        
        
          new ones. For general advice on cleaning
        
        
          and care of your glasses, see
        
        
          ▶
        
        
          Glassware.
        
        
          Grainy, coarse or sandy residue
        
        
          If too much detergent is used, it may settle
        
        
          on crockery. Another reason may be larger
        
        
          quantities of food deposits containing
        
        
          starch. Remove large quantities of foods
        
        
          containing starch before loading into the
        
        
          dishwasher.
        
        
          The ABC of dishwashing