Which of the following is true while concentrating jams?
(a) They’re sensitive to heat
(b) Evaporation process for jams is carried out under vacuum
(c) At vacuum, the boiling point decreases
(d) All of the mentioned
I have been asked this question in an interview for internship.
The origin of the question is Unit Operations in portion Heat Transfer Equipment, Microwave Heating, Evaporation, Diffusion and Mass Transfer and Dehydration of Food Engineering