6
UNDERSTANDING YOUR MICROWAVE OVEN
USE

Ovenproof Glass

•Glass treated for use in high-intensity heat includes
utility dishes, bread dishes, pie plates, cake plates,
liquid measuring cups, casseroles, and bowls without
metallic trim.

China

•Bowls, cups, ser ving plates, and platters without
metallic trim can be used in your oven.

Plastic

•When using plastic wrap as a cover, make sure that
the dish is deep enough so the plastic wrap does not
touch the food. As the food heats, it may melt the
plastic wrap wherever the wrap touches the food.
•Place plastic wr ap loosely over the top of the dish
and secure it by pressing the wrap to the sides of the
dish.
•Vent by turning back one corner of the plastic wrap.
This will allow excess steam to escape.
•Use plastic dishes, cups, semi-rigid freezer
containers, and plastic bags only for short time
cooking. Use these with care because the plastic
may soften from the heat of the food.

Paper

•Microwave-safe paper towels, waxed paper, paper
napkins, and paper plates with no metallic trim or
design can be used in your oven.
•Refer to the manufacturer ’s label for use of any paper
product in the microwave oven.
DO NOT USE

Metal Utensils

•Metal shields food from microwave energy and
produces uneven cooking. Avoid metal skewers, ther-
mometers, or foil trays.
•Metal utensils can cause arcing, which is a
discharge of electric current. Arcing can damage your
microwave oven.

Metal Decoration

•Do not use metal-trimmed or metal-banded
dinnerware, casserole dishes, etc.

CenturaTM Tableware

•The Corning Company recommends that you do not
use Centura tableware and some CorelleTM closed-
handle cups for microwave cooking.

Aluminum Foil

•Avoid large sheets of aluminum foil because they hin-
der cooking and may cause arcing.
•Use small pieces of foil to shield poultry legs and
wings.
•Keep all aluminum foil at least 1 inch from the walls
and door of the oven.

Wood

•Wooden bowls, boards, and baskets will dry out and
may split or crack when you use them in the micro-
wave oven.

Tightly Closed Containers

•Tightly closed cookware can explode. Be sure to leave
an opening for steam to escape from covered cook-
ware.

Brown Paper

•Avoid using brown paper bags. They absorb heat and
could burn.

Metal Twist Ties

•Always remove metal twist ties as they can become
hot and cause a fire.
COOKWARE GUIDE
Most heat-resistant, non-metallic cookware is safe for use in your microwave oven. However, to test cookware before
using, follow these steps:
1. Place the empty cookware in the microwave oven.
2. Measure 1 cup of water in a glass measuring cup and place it in the oven beside the cookware.
3. Microwave on 100% power for 1 minute. If the dish is warm, it should not be used for microwave cooking.