+1 vote
in Food Engineering by (93.8k points)
Hannah ordered one ton of mushrooms. But, the entire lot was brown. Which dryer could it possibly have been?

(a) Bin dryer

(b) Tray dryer

(c) Tower Dryer

(d) Vacuum dryer

This question was addressed to me during an online exam.

My enquiry is from Unit Operations in chapter Heat Transfer Equipment, Microwave Heating, Evaporation, Diffusion and Mass Transfer and Dehydration of Food Engineering

1 Answer

+2 votes
by (380k points)
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Best answer
The correct choice is (b) Tray dryer

Easiest explanation: Browning of heat sensitive food items may take place due excess exposure to hot air. Tray dryer has a high residence time. Hence, it is the most possible guess out of the four.

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