Water Activity Meter

Solutions for measurement and monitoring of water activity.

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What Is Water Activity?

At Commercial Dehydrator, we recognize the critical role that water activity plays in determining the quality and stability of various products across multiple industries, including food, tobacco, pharmaceuticals, plastics, and cosmetics. Water activity, often abbreviated as "AW"​, measures the energy status of the water within a sample. This is not merely the total amount of water present, but the proportion of water available for biological and chemical reactions.


We offer a portable solution for measuring water activity, ensuring that your production processes are both efficient and compliant with industry standards. Our activity meter provides precise, reliable, and easy-to-interpret data that empowers your business to maintain optimal levels in your products, enhancing overall quality and consumer satisfaction.

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Significance of Water Activity

Water activity is essential for predicting the stability and longevity of products by indicating the amount of water available for microbes. Each type of microorganism, from bacteria to molds, has a specific water activity threshold below which it cannot grow. This makes AW​ a crucial factor in product formulation and safety protocols.


Application Across Industries


  • Food Industry: Determines susceptibility to microbial contamination and influences texture, shelf life, and flavor of food products.
  • Pharmaceutical and Cosmetics Industry: Ensures the stability and efficacy of products, affecting everything from tablet cohesion to cream emulsion stability.
  • Tobacco Industry: Impacts moisture content, affecting product quality and usability.
  • Seed Storage: Maintains germination viability and prevents spoilage.
  • Industrial Manufacturing: Controls physical properties and processing characteristics of materials like plastics and textiles.
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