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•Make sure that no acidic liquids, e.g. vinegar, lemon or descaling
agents, are spilt onto the hob frame, since these cause dull spots.
•If sugar or a preparation with sugar comes into contact with the hot
cooking zone and melts there it must be cleaned off immediately
with a scraper while it is still hot. If it cools, the surface may be dam-
aged when it is removed.
•Keep all items and materials that can melt away from the ceramic
glass surface, e.g. plastics, aluminium foil, or oven foils. If something
of this nature s hould m elt ont o the ce ramic gl ass sur face, it must al so
be removed immediately using the scraper.