...They experienced biotechnology firsthand by making soy ink to create cards for service members. Using cornstarch, soybean oil and a microwave, they made plastic out of soy.At the Johnson County fairgrounds in Franklin, they became engineers...
...said. "Why not run it on that if you can get it for nothing?" He has a stockpile of old french fry grease -- used soybean oil from Dairy Queen -- that he lets sit and separate for a few weeks before he pours out the lighter oil to put through...
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