

Makes controls inoperable when engaged. Found on all tested models except the Apollo Half Time Oven AAC-34S.
Helps brown and crisp food with circulating heated air. Usually found on pricier microwaves, as shown in the Ratings, though you don't have to pay top dollar to get it.
Automate the cooking time of popular foods by letting you simply press a button. All tested models have them for popcorn and other snacks; some have keys for grits and other fare.
Shown at right, these let you cook several foods at once, as long as the pans aren't too tall. Found on most tested over-the-range microwaves, as shown in the Ratings (available to subscribers).
Helps prevent under- and overcooking by turning off when food is done. On most tested models, as shown in the Ratings (available to subscribers). Even with a sensor, check doneness with a thermometer to be safe.
Combines microwaves with convection and, often, halogen bulbs to speed cooking. Tested models that have it are noted in the Ratings. The Whirlpool Gold GH6177XP[B] and Velos GH6208XR[B] lack convection but use halogen bulbs for broiling foods.