Coffee Labs
Sampling Equipment
Particle Size Analyzers
WATER ACTIVITY SETS FOR COFFEE
SALES (804) 318-3686
WATER ACTIVITY METER SETS
Water activity – a measure for the energy status of the water in a system” specifies
the relationship between the water vapor pressure of a product and the saturation
pressure of pure water at the same temperature. It is stated in “aw” in the range 0…1 aw
and is an important indicator for product quality in the industrial production of, for
example, plastics. The determination of water activity is also very important in the
food, tobacco, pharmaceutical and cosmetics industries. Water activity should not
be confused with the water content – the “chemically bound” water – of a product
Water activity influences the following properties of a product:
• microbiological stability
• chemical stability
• enzymatic stability
• color, taste and nutritional value
• protein and vitamin content
• stability of the composition
• shelf life
• storage and packaging
• solubility and texture
