Check whether your cooking utensils has level bases by placing the item in question upside down on a work top and positioning a ruler on the base. A curved base, both inwards and outwards, will prolong the cooking time and increase the energy consumption. If the diameter of the base is too small, the energy consumption will increase, and any food boiling over will burn onto the hot cooking zone.
Cooking utensils with very shiny/bright bases will prolong the cooking time slightly compared with cooking utensils with matt/dark bases.
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