Specifications

B-ﬁeld Exposure From Induction Cooking Appliances 14

is 12 cm without speciﬁcation of pot thickness. The Electrolux manual (appliance 1) speciﬁes a

bottom thickness of 2 to 3 mm for enameled steel pots, and 4 to 6 mm for stainless steel pots,

without speciﬁcation of minimal pot diameter. Instructions concerning suitable pots and pans

are given in the manuals of all appliances:

• Only ferromagnetic pans are suitable for induction cooking. They can be made of steel,

enameled steel, cast-iron or special stainless steel. Aluminum, copper, brass, glass, ceram-

ics or porcelain pots must not be used. To check whether a pot is suitable, the use of a

magnet is suggested: If it sticks the pot is suitable for induction cooking.

• Cooking with an empty pan should be avoided. The hob immediately switches oﬀ in the

case of overheating. This function is available on all three appliances.

• Pots and pans must be centered on the hobs to avoid nonuniform heating.

• The pot must have a minimum diameter which is related to the hob dimension. If the pot

is too small or of unsuitable material, the hob will not switch on. This function is available

on all three appliances. It is recommended to always choose a properly sized pot for the

quantities of food to save energy.

• Metallic objects such as cans, utensils, jewelry, cutlery, watches, aluminum foil paper, and

lids should not be put on the hobs to avoid the danger of burning.

Standard set of pots In order to comply with the test conditions speciﬁed in EN50366, a

standard set of pots has been deﬁned (see Figure 9). It corresponds to the pots 3, 14a, 14b

and 13, with bottom diameters of 22 cm, 18 cm, 18 cm and 14.5 cm, respectively. These pots

correspond to the smallest standard vessel that covers the marked cooking zone for all three

appliances. The standard pots are not of enameled steel but of stainless steel, since stainless

steel cooking vessels are sold in the largest volume on the Swiss market.

Figure 9: Standard set of pots.

3.3.2 Worst-Case Set of Pots

However, despite the manufacturer instructions, users do not always follow the included rec-

ommendations, and not everyone operating an induction cooker has read the manual. When

consumers buy a new induction cooking appliance, they are likely to continue using old pans

if they appear to work, despite not being perfectly adapted for induction cooking. In order to

perform a worst-case B-ﬁeld exposure and to select a worst-case set of pots, 16 pots and pans

were assessed (Figure 10). Their characteristics are given in Table 2.