PBS Blend — a coffee that’s “sweetly balanced and smooth, with full flavor and a rich finish” — will be sold by Green Mountain Coffee Roasters, which announced it today from Waterbury, Vt. The coffee is grown in Mexico with environmentally responsible practices, and its Fair Trade Certified label indicates the farmers get a fair price, the company said. Green Mountain ranked No. 1 in Business Ethics magazine’s list 100 “best corporate citizens,” not far above Starbucks, and No. 98 among Fortune Small Business magazine’s top 100 fastest-growing small stockholder-owned companies, right after Peet’s Coffee.