Pelgrim GK410 Notice D'utilisation page 52

maintenance
52
General
Stubborn stains on enamel (pan supports, burner caps, spillage wells)
Remove with a non-abrasive cream or a soft sponge. Never use scouring
powder, scouring pads, sharp objects or aggressive cleansing agents.
Stubborn stains on stainless steel (spillage wells)
In particular boiled over red cabbage, red beetroot, soysauce, rhubarb
and other foodstuffs with a high sugar content and acidic liquids can cause
discoloration of the surface.
If you want to remove stubborn stains from stainless steel, you can best use
a cleaning agent specially formulated for stainless steel. In that case, always
clean in the direction of the structure of the steel in order to avoid shiny spots.
(Damage resulting from this are not covered by the warranty!)
If the stains cannot be removed using the method described above, you can
clean the hob with HG oven and grill cleaner. Bear in mind, however, that you
will have to clean the whole of the spillage well in order to avoid differences
in 'colour'. You must also treat the spillage well afterwards with a polish or
maintenance product for stainless steel. It is normal for the surface to discolour
somewhat during the product's lifetime.