Food Preparation and Nutrition GCSE
Water Activity (Aw)
What Water Activity (Aw) means in Food Preparation and Nutrition GCSE, as defined for AQA.
Definition of Water Activity (Aw)
The measurement of available water in a food product that microorganisms can use for growth.
Topics that use Water Activity (Aw)
- Food safety (AQA GCSE)
Related terms
- Blanching
- Chemical Oxidation
- Cross-contamination
- Cross-Contamination Vectors
- Culinary Traditions and Recipe Modification
- Danger Zone
- Denaturation
- Enzymatic Degradation
Using Water Activity (Aw) in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
Practise Food Preparation and Nutrition questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Food Preparation and Nutrition GCSE terms7 days Premium · Then free forever · No card, no charge