The sequence followed for production of pasteurized milk.
A. Receiving milk (grading, sampling, weighing, testing)
B. Standardization
C. Filtration/clarification (pre-heated 35--40$^\circ$C)
D. Pasteurization (63$^\circ$C/30 min or 72$^\circ$C/15 sec)
E. Packaging and storage (5$^\circ$C or below)