Water Activity

Water Activity Measurement - Moisture Meter - Measurement and Monitoring of aw Value


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The measurement of water activity or equilibrium relative humidity (ERH) is a key parameter in the quality control of moisture sensitive products or materials. 

If there is too much water in a product, there is a risk of microbial growth and water migration. This can lead to clumping, changes in consistency and reduced shelf-life. Manufacturers of foods and pharmaceutical products must, for example, show to the FDA that the water activity of a product has declined to such an extent that bacteria can no longer grow.

You can find further information on the measurement of water activity and equilibrium relative humidity in our video or brochure:
 

How-to measure Water Activity in under 5 minutes with AW-Quick
Water Activity - Definition, Applications and Products

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