Abstract: A cooling system for a beverage dispensing system includes a cooling jacket for placement around a beverage container, such as a keg. The cooling jacket includes a main body having a top edge, an opposite bottom edge, an inner surface and an opposing outer surface. The main body is configured for placement around a side of the container. The main body has a first interior space for receiving the container, wherein the main body is formed of a first insulation material. The cooling jacket also includes an openable and closeable upper body that is for placement above and over a top of the container. The upper body is coupled to the main body such that is lies thereabove. The upper body is formed of a second insulation material. The upper body has a means for closing the upper body for completely enclosing the container within the cooling jacket.