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Make sure all cookware used in your
microwave oven is suitable for
microwaving. Most glass casseroles,
cooking dishes, measuring cups, cus-
tard cups, pottery or china dinner-
ware which does not have metallic
trim or glaze with a metallic sheen
can be used. Some cookware is
labeled “suitable for microwaving.”
• If you are not sure if a dish is
microwave-safe, use this test: Place
in the oven both the dish you are
testing and a glass measuring cup
filled with 1 cup of water—set the
measuring cup either in or next to
the dish. Microwave 1 minute at
high. If the dish heats, it should
not be used for microwaving. If the
dish remains cool and only the
water in the cup heats, then the
dish is microwave-safe.
• Do not use recycled paper prod-
ucts. Recycled paper towels, nap-
kins and waxed paper can contain
metal flecks which may cause arc-
ing or ignite. Paper products con-
taining nylon or nylon filaments
should be avoided, as they may
also ignite.
• Some styrofoam trays (like those
that meat is packaged on) have a
thin strip of metal embedded in
the bottom. When microwaved,
the metal can burn the floor of the
oven or ignite a paper towel.
• Do not use the microwave to dry
newspapers.
• Not all plastic wrap is suitable for
use in microwave ovens. Check the
package for proper use.
• Paper towels, waxed paper and
plastic wrap can be used to cover
dishes in order to retain moisture
and prevent spattering. Be sure to
vent plastic wrap so steam can
escape.
• Cookware may become hot
because of heat transferred from
the heated food. Pot holders may
be needed to handle the cookware.
• “Boilable” cooking pouches and
tightly closed plastic bags should
be slit, pierced or vented as direct-
ed by package. If they are not, plas-
tic could burst during or immedi-
ately after cooking, possibly result-
ing in injury. Also, plastic storage
containers should be at least par-
tially uncovered because they form
a tight seal. When cooking with
containers tightly covered with
plastic wrap, remove covering care-
fully and direct steam away from
hands and face.
• Use foil only as directed in this
guide. TV dinners may be
microwaved in foil trays less than
3/4″ high; remove the top foil
cover and return the tray to the
box. When using foil in the
microwave oven, keep the foil at
least 1 inch away from the sides of
the oven.
If you use a meat
thermometer while cooking,
make sure it is safe for use
in microwave ovens.
Microwave-Safe
Cookware
How to Test for a
Microwave-Safe Dish
Important Safety Information
Special Notes About Microwaving