News Food
Water activity and certified moisture measurement: Why aw values are crucial - and how GRUBATEC AG ensures safety and quality with Schaller technology.
🧪 What is water activity - and why is it crucial for food?
The water activity (aw value) determines how much freely available water is contained in a food - a key factor for shelf life, safety and quality. The lower the value (scale from 0 to 1), the less of a target for germs, mold and undesirable chemical processes.
➡️ Advantages of a controlled aw value:
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Inhibits microbial growth (e.g. salmonella, mold)
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Extends the shelf life of products
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Maintains texture and freshness (e.g. for snacks and baked goods)
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Reduces chemical reactions such as oxidation
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Allows targeted preservation & optimized packaging
📏 Measure quickly with the humimeter RH2
The humimeter RH2 enables simple and precise measurement of water activity - ideal for quality control in food production. Two interchangeable sensors ensure flexible use depending on the product.
GRUBATEC AG - Expansion of the Schaller test laboratory: Now also for food and agricultural products
Precise moisture measurement with international accreditation
Schaller Messtechnik GmbH, whose products we exclusively distribute at GRUBATEC AG, has been operating an EN ISO/IEC 17025:2017 accredited test laboratory for determining the water content and moisture content of variousmaterials since 2016.
The range of services offered by this laboratory was expanded in March 2024 - food and agricultural products are now also included in the accredited range of tests. This makes Schaller one of the few specialized testing laboratories with such a broad range of applications for moisture measurement.
Your advantages with GRUBATEC & Schaller Messtechnik
As an official sales partner of the high-quality moisture meters from Schaller Messtechnik, our customers benefit twice over:
The expertise gained in the laboratory flows directly into the development and calibration of the measuring devices - for maximum precision and practical application in industry, agriculture, wood or food processing.
Our devices deliver precise and reproducible measurement results, matched to the respective material characteristics - reliable, robust and standard-compliant.
Certified test methods at a glance
The accredited Schaller test laboratory now offers the following internationally standardized test methods:
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EN ISO 18134-2 - Solid biofuels: Water content by oven drying
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EN ISO 4684 - Leather: Determination of volatile substances
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EN ISO 287 - Paper and board: Moisture content in the delivery lot
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EN 13183-1 - Sawn timber: Kiln drying method for moisture determination
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EN ISO 712 - Cereals and cereal products: Reference method for water content
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EN ISO 6540 - Maize: Moisture content in milled kernels
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EN ISO 665 - Oilseeds: Moisture and volatile matter
🔍 Trust in certified quality
With a laboratory accredited by EN ISO/IEC 17025:2017 and innovative device technology, GRUBATEC AG provides you with certified moisture measurement at the highest level - for all industries in which moisture plays a decisive role.
➡️ GRUBATEC AG - Your Swiss partner for professional moisture measurement with devices from Schaller Messtechnik.
For more information, please click on the red boxes.
