Microwave Ovens: Compact and Countertop Models

Capacity and wattage: what fits and how fast it heats

Microwave capacity is given in cubic feet. A compact 0.7 cubic foot oven suits a dorm or office and fits a 10-inch plate on a turntable; 0.9 to 1.1 cubic feet is the common size for a household. Output wattage runs from about 700 to 1250 W, and recipes and package instructions are generally written for around 1000 W. A lower wattage works, but lengthen the time and stir or turn the food more often.

Controls vary. Ten power levels and a few one-touch presets are standard, while a simple dial suits those who only reheat; a defrost setting by weight is useful for meat. A sensor that stops the cycle when the food steams helps avoid overcooking. Look for an interior light, a child lock and a turntable that can be removed, because a flat floor makes cleaning easier.

Countertop clearances, over-the-range models and accessories

A countertop microwave needs ventilation space around it, usually a few inches at the sides and back and clear space above, and many makers advise a dedicated outlet because it draws about 10 to 15 amps. Over-the-range models are a different product with a mounting plate, a vent fan and specific cabinet and cooktop clearances. The aisle also lists microwave accessories such as plastic egg cookers; check that they are labeled microwave safe and sized for your oven's turntable.

Questions about Microwave Ovens: Compact and Countertop Models

What wattage microwave do I need?

For reheating and simple cooking, 700 to 900 W is enough. Choose around 1000 W or more if you cook from raw or want package times to match. Lower wattage models work but need longer times, and wattage matters more than the cubic-foot size for speed.

How big a dish will fit in a compact microwave?

Check the turntable diameter and interior height in the specifications, not only the cubic-foot figure. A 0.7 cubic foot model usually takes a standard dinner plate but not a large casserole or tall container. Leave a gap so the dish can rotate freely.

Why does food heat unevenly in a microwave?

Microwaves create hot and cold spots in the cavity. The turntable helps, but you still need to stir, turn or rearrange food halfway and let it stand for a minute afterward so heat evens out. Covering food keeps moisture in.