A new type of cow’s milk has appeared on the market. This product, called A2 type milk, is of interest to both, consumers and researchers. There is more and more evidence that A2 type milk has possible health benefits and for this reason, the researchers surrounding the product. The A1 type milk (A1 type beta-casein), generally, was found in the milk of breeds from North European origins such as Friesian, Ayrshire, British Shorthon, and Holstein whereas the A2 type milk was found in cows of Guernsey, Jersey, and the Channel Islands and Southern French breeds. Charolaise and Limousin breeds in Europe and Zebu cattle in Africa and Asia were also producing A2-type milk. Thus, this study proposed to review the physical and technological properties of A2 milk in dairy processing units.