Question

Achieving the appropriate aw level in dehydrated foods is crucial to ensure food safety and adequate shelf life. Most microorganisms grow well at aw level of

A. 0.65-0.70
B. 0.91-0.99
C. 0.75-0.80
D. 0.25-0.35

Answer 1

The appropriate aw level in dehydrated foods is crucial for ensuring food safety and adequate shelf life. Most microorganisms grow well at an aw level of 0.91-0.99 (option B). Achieving the appropriate aw level in dehydrated foods can help prevent spoilage and extend the shelf life.

Step-by-step explanation:

The appropriate aw level in dehydrated foods is crucial for ensuring food safety and adequate shelf life. Most microorganisms grow well at an aw level of 0.91-0.99 (option B).

Microorganisms depend on available water to grow, and the water activity (aw) of a food determines the amount of available moisture. Bacteria require high aw, while fungi can tolerate drier environments. Lowering the water content of foods through drying, freeze-drying, or increasing osmotic pressure is a common method of preventing spoilage.

By achieving the appropriate aw level in dehydrated foods, the growth of microorganisms can be controlled, ensuring food safety and extending its shelf life.