FOOD TECHNOLOGY

FOOD PROCESSING AND PRESERVATION

FOOD PRESERVATION METHODS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The most unreliable method of dehydration is
A
oven drying
B
sun drying
C
tray drying
D
None of the above
Explanation: 

Detailed explanation-1: -Dehydration is more rapid, controlled, and efficient than sun drying in the open. Dehydration requires less space (floor area) than sun drying. Dehydration is more hygienic than drying in the open sun. Dehydration is not dependent on weather conditions whereas drying is not possible in cloudy weather or during rains.

Detailed explanation-2: -Foods can be dehydrated by various means: the sun, a conventional oven, an electric dehydrator, a microwave oven (for herbs only), air drying and solar drying. Dehydration, like other preservation methods, requires energy.

Detailed explanation-3: -Sun Drying. Sun drying is the evaporation of water from products by sun or solar heat, assisted by movement of surrounding air. To be successful, it demands a rainless season of bright sunshine and temperatures above 98° F coinciding with the period of product maturity.

There is 1 question to complete.