Shinn Estate Vineyards in Mattituck has been one of my favorite North Fork producers ever since my first visit last fall. Then, they only had two wines available for tasting, a great value Chardonnay and a tremendous 2002 “young vines” Merlot, which was touted recently as Long Island’s best red in a New York Times article by Eric Asimov. I don’t agree with how Asimov came to this conclusion (no matter how good the wine is) but let’s get back to Shinn Estate Vineyards, which debuted four new wines at Windows On Long Island on April 25. I’ve written several…