Question

Tina observed the following when she tested the specific gravity of milk to check for adulteration- the specific gravity was lesser than that of pure milk. She complained to the milk vendor and the next day checked the specific gravity again. This time it came in the range of the desired specific gravity. Can we be assured that this is pure unadulterated milk?

(a) Yes, definitely

(b) No, definitely unsafe

(c) Maybe safe, maybe unsafe

(d) None of the mentioned

This question was posed to me in final exam.

The query is from Food Adulteration in portion Food Adulteration, Additives and Food Packaging and Labeling of Food Engineering

Answer 1

Right option is (c) Maybe safe, maybe unsafe

The explanation: We cannot be sure whether it is pure unadulterated milk because the specific gravity of the adulterated milk(with water) can be easily increased using other unseen adulterants such as urea, sugar etc.