Question

At which temperature pasteurization of milk is done.
(1) 10°C
(2) 20°C
(3) 70°C
(4) 100°C​

Answer 1

Pasteurization of milk, widely practiced in several countries, notably the United States, requires temperatures of about 63 °C (145 °F) maintained for 30 minutes or, alternatively, heating to a higher temperature, 72 °C (162 °F), and holding for 15 seconds (and yet higher temperatures for shorter periods of time).