GE JE1460BF Owner's Manual page 22

About the sensor features.
Covered
Vented
Dry off dishes so they don't mislead
the sensor.
22
Humidity Sensor
The Sensor Features detect the increasing humidity
released during cooking. The oven automatically adjusts
the cooking time to various types and amounts of food.
Do not use the Sensor Features twice in succession on
the same food portion—it may result in severely over-
cooked or burnt food. If food is undercooked after the
countdown, use Time Cook for additional cooking time.
■
The proper containers and covers are essential for
best sensor cooking.
■
Always use microwave-safe containers and cover
them with lids or vented plastic wrap. Never use
tight-sealing plastic containers—they can prevent
steam from escaping and cause food to overcook.
■
Be sure the outside of the cooking containers and
the inside of the microwave oven are dry before
placing food in the oven. Beads of moisture turning
into steam can mislead the sensor.