Fresh foods have water activity (Aw) of____________________?
Correct answer: A. 0.99
- A. 0.99
- B. 1.0
- C. 1.6
Explanation
Most fresh foods have very high water activity, commonly around 0.95 to 0.99, so 0.99 is the best listed value. Pure water has an activity of 1.0, but dissolved sugars, salts and other solutes lower food water activity.
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