FOOD TECHNOLOGY

Detailed explanation-1: -Many foods such as chips, papad, vegetables like methi or ginger are dried or dehydrated and preserved. By dehydrating, the moisture inside these substances is removed and thus micro-organisms are unable to thrive on them, thus, preserving them.

Detailed explanation-2: -Answer: Papads which have been soft and moist should be kept in sun for drying. Drying method involves removal of water content (moisture) from the foodstuffs. Papads when kept in sun for drying for 2-3 days will become crisp again.

Detailed explanation-3: -Drying or “dehydrating” food is a method of food preservation that removes enough moisture from the food so bacteria, yeast and molds cannot grow.

Detailed explanation-4: -Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.