A needle for accessing a container having a closure, such as a cork of a wine bottle. The needle includes first and second lumens each having a D-shaped cross section and a flat surface. The first and second lumens are attached with the flat surfaces in contact, and each lumen may have an outlet opening at a distal end. The needle may be used with a beverage dispenser that operates by introducing gas into a container via one lumen, and receives beverage from the container via another one of the lumens.