Harpoon Brewery and UFO Beer Co., both operating units of Mass Bay Brewing Co., released seasonal mix-packs: Harpoon’s Wintry Mix and UFO’s Northern Lights. Available throughout December, each limited-edition mix-pack contains 12 beers has a suggested retail price of $14.99. Featuring a friendly and festive lineup of employee-owner-brewed beers, Harpoon’s Wintry Mix features Harpoon IPA, Winter Warmer, Vanilla Bean Porter and Big League varieties from the craft brewer. Additionally, UFO is no stranger to the mysteries of the night sky, and few compare to the beauty of the northern lights, it says. Northern Lights was chosen for UFO’s new winter mix-pack that rings in the holidays and celebrates the beautiful midnight tableaus of the winter months, it adds. Beer varieties featured in the mix-pack are UFO White, UFO Light Force, UFO Maine Blueberry and UFO Winter Blonde.