A method for cooling milk in a milking arrangement, and a milk cooling apparatus of the milking arrangement that has a coolant circuit for heat exchange between milk and a coolant and a refrigerant circuit for heat exchange between a refrigerant and the coolant, where the method includes controlling the refrigerant circuit to maintain a predefined temperature range, receiving a first signal relating to commencement or increase of a milk flow from a milking system of the milking arrangement, starting or increasing circulation of coolant in the coolant circuit, and leading the milk flow through the milk cooling apparatus.