It’s a beautifully mild and sunny winter Saturday in San Francisco. My friend and fellow tea blogger Mike (The Tea Letter) and I are headed across the Golden Gate Bridge to Marin County, north of San Francisco. On the way, lush eucalyptus groves give way to towering redwoods. It’s a beautiful area and one that I often come to when I go hiking. Our destination is Lagunitas, where a very special tea tasting awaits.