A machine for making liquid and/or semi-liquid products for the ice cream, pastry or catering trade, including:a processing container forming a processing chamber for making an ice cream product；a stirrer mounted inside the processing chamber；a thermal treatment system provided with at least one heat exchanger associated with the processing container, for exchanging heat with the container；a feed unit including a container containing a basic preparation for an ice cream, pastry or catering product, and a pressurized gaseous fluid injection device configured to inject the gaseous fluid into the container in such a way as to cause the basic preparation to be expelled from the container and transferred to the processing container；a diluting liquid injection device for delivering a diluting liquid.
