Napa Valley winery puts sustainability at the heart of its winemaking process

Lauren Toms reports on a Napa Valley winery that is taking sustainability in winemaking to the next level. Website: http://kpix.com/ YouTube: http://www.youtube.com/CBSSanFrancisco Facebook: https://www.facebook.com/CBSSanFrancisco Instagram: https://www.instagram.com/kpixtv/ Twitter: https://twitter.com/KPIXtv