Formula Foods - Water Activity Testing

By: Formula Foods  06-Dec-2011
Keywords: Water Activity, Moisture Sorption, Sorption Isotherm,

Results Fast

Get water activity (aw) results fast, from New Zealand's premier water activity testing lab, using the world's leading . Testing is performed in accordance with the relevant AOAC method and results are generally available within 4 hours of samples being received.

All water activity analysis is performed on the Decagon AquaLab, the world's fastest and most accurate water activity instrument.


How do I Relate Moisture Content to Water Activity?

The relationship between moisture content and aw for a product is called a 'moisture sorption isotherm'. You can determine your product's moisture sorption isotherm with our .


What is Water Activity?

Water Activity (aw) is the critical factor that measures the shelf life of food products. While temperature, pH and several other factors can influence microbiological activity, water activity is probably the most important factor.

Water activity is a measure of the ‘free’ water in a food sample, as opposed to the ‘ bound’ water. Most bacteria for example, do not grow at water activities below 0.91 and most moulds cease to grow at water activities below 0.80. By measuring aw it is possible to predict which microorganisms will and will not be potential sources of spoilages.

Download our showing the critical aw limits for different micro-organisms.


Keywords: Moisture Sorption, Sorption Isotherm, Water Activity,

Contact Formula Foods

Email - none provided

Print this page

Other products and services from Formula Foods

06-Dec-2011

Formula Foods - Product Development

Our qualified and experienced food technologists work with food industry clients to develop the product desired – be it a product improvement, reformulation, or the design of a completely new product. From product concept to product reality; we add value at every step of your product development. There's a lot that goes in to making a successful product.


06-Dec-2011

Formula Foods - Technical Consultancy

Our professional food technologists are available for technical consultancy in all aspects of food technology, from research studies to manufacturing. Solution-basedapproach to consultancy will ensure that you get the result you require. Processing / Production Problem Solving.


06-Dec-2011

Formula Foods - Nutritional Labelling

We offer a painless nutritional labelling service, that provides you with correctly formatted ingredient listings and nutritional information panels, as fast and affordably as possible. Since the inception of these regulations Formula Foods has been at the forefront, providing prompt, confidential and compliant labelling solutions.


06-Dec-2011

Formula Foods - Sorption Isotherm Generation

If you are having shelf-life or product moisture related problems, then understanding the product's moisture sorption characteristics may assist in solving the problem. When water is a key ingredient, knowing your products' or ingredients' moisture sorption isotherm is the first step in developing profitable, shelf-stable prducts.


06-Dec-2011

Formula Foods - Shelf Life Testing

In addition to performing the shelf life analysis, we can assist with formula modification to improve the product's shelf life, if necessary. Our shelf life analysis will give a clear picture of your product's expected shelf life, presented in an easy to understand format. We offer a comprehensive shelf life testing and validation service.