California winery hires earthworms to clean up its wastewater

A glass of wine can require as much as 14 gallons of water to make, prompting Fetzer Vineyards to try a wriggly wastewater solution invented in Chile

Next time you open a bottle of merlot or chardonnay, be sure to thank the vintner. And you might want to toast the worms, as well.

Everyday earthworms are the latest solution to a thorny problem that most wine drinkers never consider: wastewater disposal.