dispensers for flexible sealed plastic bags used for the storage of wines or other liquids that may spoil when exposed to the air . the outer sleeve of each of the described embodiments of the dispenser is attached to the exterior surface of the sealed bag and either cuts or shears open the bag by a combination of rotational and longitudinal movement of the barrel of the dispenser within the sleeve . the fluid is thereafter dispensed through radial holes through the sleeve and the barrel by only rotational adjustment of the sleeve within the barrel .