Wolffer Estate Vineyards and winemaker Roman Roth are known for producing some of the East Coast’s best chardonnay and merlot. But it is this wine, the Wolffer Estate Vineyards 2011 Rose ($16), that is probably the winery’s best known. You’ll find it most every where in the Hamptons — from posh pool parties to the beach to restaurants and bars — and they make a lot of it every year, typically well north of 9,000 cases (which dwarfs several Long Island wineries’ total production). Made with 54% merlot, 21% chardonnay, 9% pinot noir, 8% cabernet franc and 8% cabernet sauvignon,…