Beverage dispensing system

A beverage dispensing system which comprises a flexible container of the beverage, said container being subjected externally to atmospheric pressure and sealing the beverage therein from the external atmosphere;

• dispensing means in sealed communication with the beverage in the container for dispensing beverage from the container while the container collapses under atmospheric pressure to maintain the beverage remaining therein substantially without headspace;
• and means for introducing into the beverage remotely from the container and during said dispensing, at least one of carbon dioxide, nitrogen and air gases so that said introduced gas serves to provide or increase a dissolved gas content of the beverage and to form or assist in the formation of a froth or head on the beverage as dispensed, said introducing means comprising a pressurized source of the gas which is to be introduced, a fixed orifice restrictor and a non-return valve successively through which pressurised gas from the source is introduced into the beverage, and means for adjusting the pressure of the introduced gas prior to said gas passing through the restrictor.