April 22, 2007 By: Judy Waggoner Source: Postcresent Who: Greg Van Elzen, 31, started FiltaFry of Northeast Wisconsin, a fryer management service, in September. “We clean fryers with a vacuum-based, deep cleaning system,” Van Elzen said. He uses a special microfiltration unit that originally was developed to filter oil for aircraft. Van Elzen worked at … Continue reading Former beverage distributor opens oil filtering business