Apparatus (1) for monitoring and determining the milk quality category of milk in a milk storage tank (2) comprises a plurality of milk quality sensors (19) located in the milk storage tank (2), and milk quality sensors (28) located in a milk delivery pipeline (6) for delivering milk to the milk storage tank (2) from a milking system (5). A microprocessor (17) reads signals from the milk quality sensors (19) for determining the quality of the milk in the milk storage tank (2), and determines the data indicative of the milk quality category of the milk in the milk storage tank (2), which is stored in a memory (20) of the microprocessor (17). A communications module (22) wirelessly transmits via the internet (25) the data indicative of the milk quality category of the milk in the milk storage tank (2) to a central server (18), which in turn is stored in a memory (26) of the central server (18). A creamery is permitted access to the data indicative of the milk quality category of the milk stored in memory (26) p
