Rösle Silence PRO Manuel page 31

4. Handling Instructions
3 Please remove any labels before using your cookware for the
first time.
3 Never heat the cookware when empty. As a guide, 2-3 drop
of oil is sufficient to protect your cookware from overheating.
If the oil in your cookware starts to smoke, reduce the heat.
3 Carefully wash items with hot water and detergent before
using them for the first time.
3 Use highest heat level only for heating up; reduce heat
promptly and cook meals thoroughly at medium level.
3 Only use low temperatures when cooking with little water.
3 Never drag or push the cookware across the hob, as this may
damage both the cookware and the surface of the surface of
the hob.
3 To prevent surface corrosion, only add salt to cooking water
while stirring and do not store salty foods in cookware.
3 After use, clean your cookware with hot water as soon as
possible.
Note for Induction Hobs:
Ideally the hotplate should match the diameter of the cookware
so that the magnetic induction plate reliably recognises the
cookware. At high heat levels there may be a buzzing sound.
There is a technical reason for this and it is not an indication
of a faulty cooker or cookware.