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Soybean has found a calling higher than tofu and tamari sauce. It's being used to insulate equipment bringing electricity to millions of homes.

More than 100 utilities in the US are using soy-based oil as a safer, eco-friendly alternative to petroleum coolants in electrical transformers, which convert high-voltage power from a plant to a lower voltage for consumers.

Soy oil also helps transformers to perform better and last twice as long as others