Pasteurization is done at-: (A) 73 oC For 20 min, (B) 63 oC For 30 min, (C) 72 oC For 30 seconds, (D) 63oC For 30 seconds
Answer is B. * Pasteurization of milk, widely practiced in several countries, notably the United States, requires temperatures of about 63deg C (145deg F) maintained for 30 minutes or, alternatively, heating to a higher temperature, 72deg C (162deg F), and holding for 15 seconds (and yet higher temperatures for shoer periods of time).