Abstract: A method of packaging a beverage having gas in solution has an open topped container 1 in which is located a hollow insert 5 having a restricted aperture 12. The container is charged with the beverage such as beer 15 so that the aperture 12 is submerged in the beverage and the container is sealed to form a headspace 19 which is pressurized, preferably by dosing with liquid nitrogen. Following sealing the container is rapidly inverted to locate the aperture 12 in the headspace 19 so that gas pressures in the insert chamber 10 and the headspace 19 come into equilibrium. With the fluid contents in equilibrium, or substantially so, the package is reinverted so that gas under pressure in the insert chamber 10 communicates directly by way of the aperture 12 with beer in the chamber 10.