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Eco-Conscious Entrepreneurs Clean Up with a Soap Business

A couple turns restaurants' cooking oil into soap -- and sells it back to the establishments.

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This story appears in the March 2011 issue of Entrepreneur. Subscribe »
Waste not: Megan and Marshall Dostal at l.A.'s Osteria Mozza.

Waste not: Megan and Marshall Dostal at l.A.'s Osteria Mozza.

Photography by Jeff Clark

Marshall Dostal grew up in a thrifty New England household in which "throw on a sweater" trumped "turn up the heat." True to his roots, when he found work in the advertising industry and he and his wife, Megan, moved to Pasadena, Calif., he drove a 1984 Mercedes 300D that he ran on biodiesel.

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