Hagafen Cellars is a little hidden gem located on the Silverado Trail in Napa Valley, California. I visited this winery on Christmas Day and is one of two wineries open on this holiday. Hagafen Cellars is the cutest winery that is Napa Green certified. Hagafen Cellars is reducing its carbon foot print by using solar power, sustainable farming, and the winery is made with recycled products.