Hawaii Man's Invention Really Cookin'

Oven Uses Sun To Cook Food, Boil Water

HONOLULU -- A Hawaii inventor has developed something he believes could change the world.Inventor John Grandinetti cooked lunch for friends Sunday out on the lawn in Kahala. His heat source, a solar oven, looks more like a children's slide, but it will fry foods, bake bread and boil water.

The oven is really a long, double-walled vacuum tube filled with vegetable oil that sits in a reflective-compound parabolic curve -- a fancy name for a solar funnel that focuses sunlight on the tube. The outside of the tube is cool to the touch. But the inside reaches temperatures as high as 400 degrees -- 300 degrees on a cloudy day.

On Sunday, Grandinetti fried sausage, baking eggplant parmesan and boiled spaghetti noodles. Grandinetti said he did not create the solar oven for money. He said he is concerned about the massive deforestation around the world and people down cutting trees to use for cooking fires.
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