Abstract: A device for emulsifying and/or heating milk comprising a milk heating means, a hermetically closed milk container, a mixer provided with a milk inlet, an air inlet and an outlet of a milk-based drink, a milk supply circuit comprising a connection conduit between the milk container and the milk inlet, and at least one air pump connected in delivery to a pressurisation conduit of the milk container for pushing the pressurised milk towards the milk inlet, where a pressure adjustment means of said pressurisation conduit is included which is used for adjusting the temperature of the milk.