Temperature for UHT of milk is

Why we should not measure Temperature of boiling milk with clinical thermometer?

A glass full of hot milk is poured on the table. It begins to cool gradually. Which of the following is correct? (a) The rate of cooling is constant till milk attains the temperature of the surrounding. (b) The temperature of milk faills off exponentially with time. ( c) While cooling, there is a flow of heat from milk to the surrounding as well as from surrounding to the milk but the net flow of heat is from milk to the surrounding and that is why it cools. (d) All three phenomenon, conduction, convection and radiation are responsible for the loss of heat from milk to the surroundings.

The temperature to which milk is heated in process of pasteurization of milk

Equal masses of milk and water are taken in two identical kettles and heated by the same source. The ratio of rise of temperature of milk is found to be higher than that of water. Explain.

Assertion. Milk becomes sour if kept at room temperature for a long time. Reason. The bacteria, Streptococcus lactis, convert the milk sugar lactose into lactic acid.

At What temperature milk will gets pasteurized ?