Radarcmge

Most cooking methods--baking, boiling, frying--date from stone-ax days. They all heat food from the outside in. The Raytheon Co., prolific spawner of radar tubes, has shown short-order cooks something new; a "range" which cooks food from the inside out.

The trick is done by shooting through the food a beam of ultra-high frequency radio energy from a magnetron, the tube which powered many wartime radars. The waves make the molecules in the raw food dance back & forth three billion times a second. Their motion generates heat. In seconds, the food gets hot. There is no waiting for the heat to seep in slowly, by conduction, from the surface.

Raytheon expects airlines to be the first big "Radarange" buyers. Quick lunch restaurants are prospects too. Radarange will grill a hamburger sandwich or a hot dog in 35 seconds. It bakes foam-light cup cakes, biscuits, or gingerbread in 29 seconds. It shuts itself off automatically.

Radarange is still too expensive for the home. But eventually, Raytheon hopes, a housewife will be able to slip a pot roast into the range and rush it to the table before her homecoming husband has parked his overcoat. For rare roast beef, rich brown outside, warm pink within, he will have to wait awhile: it is still beyond Radarange.

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