9• Use foil only as directedin this manual. TVdinners may bemicrowaved in foil traysless than 3/4” (1.9 cm)high; remove the top foilcover and return the trayto the box. When usingfoil in the microwaveoven, keep the foil atleast 1” (2.5 cm) awayfrom the sides of theoven.• Plastic cookware – Plasticcookware designed formicrowave cooking isvery useful, but should beused carefully. Evenmicrowave-safe plasticmay not be as tolerant ofovercooking conditionsas are glass or ceramicmaterials and may softenor char if subjected toshort periods ofovercooking. In longerexposures to over-cooking, the food andcookware could ignite.Follow these guidelines:1 Use microwave-safeplastics only and usethem in strictcompliance with thecookware manufacturer’srecommendations.2 Do not microwave emptycontainers.3 Do not permit childrento use plastic cookwarewithout completesupervision.Take care to prevent thestarting and spreading ofaccidental cooking fireswhile the vent fan is in use.• Clean the underside ofthe microwave often. Donot allow grease to buildup on the microwave orthe fan filters.• In the event of a greasefire on the surface unitsbelow the microwaveoven, smother a flamingpan on the surface unitby covering the pancompletely with a lid, acookie sheet or a flat tray.• Use care when cleaningthe vent fan filters.Corrosive cleaningagents, such as lye-basedoven cleaners, maydamage the filters.• When preparing flamingfoods under themicrowave, turn the fanon.• Never leave surface unitsbeneath your microwaveoven unattended at highheat settings. Boiloverscause smoking and greasyspillovers that may igniteand spread if themicrowave vent fan isoperating. To minimizeautomatic fan operation,use adequate sizedcookware and use highheat on surface units onlywhen necessary.THE VENT FAN1. Operation of themicrowave oven maycause interference toyour radio, TV or similarequipment.2. When there isinterference, it may bereduced or eliminatedby taking the followingmeasures:1) Clean door andsealing surface of theoven.2) Reorient thereceiving antenna ofradio or television.3) Relocate themicrowave oven withrespect to thereceiver.4) Move the microwaveoven away from thereceiver.5) Plug the microwaveoven into a differentoutlet so thatmicrowave oven andreceiver are ondifferent branchcircuits.RADIO INTERFERENCE