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International DLG Quality Test for Mineral, Spring and Table Waters

• Mineral water in different packaging forms: glass, PET, carton  • with CO2 • with little CO2 • without CO2

Next DLG Quality Test

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Why your Mineral, Spring and Table Waters should be tested by us

Your benefits

  • Qualitative position fixing in an international competitive environment
  • High appreciation level among consumers and the trade
  • Identification of product faults to optimize quality
  • Complements your in-house quality assurance
  • Extensive marketing and communication services


DLG Certification Unit
Bärbel Würz
Tel. +49 69 24788-378

This is how our experts conduct tests

Our experts draw up expert opinions for each product under standardized conditions. These expert opinions contain notes on optimizing quality. They are based on the internationally recognized, product-specific DLG 5-Point Scheme®, which we are continuously developing further. These tests are accredited under the standard DIN EN ISO 17065.

The inspections of packaging and labelling are conducted in rooms separate from the sensory analysis and laboratory tests. This ensures that the neutrality of our test results is maintained. Experts specialized in packaging conduct these tests. The mandatory labelling elements are examined.

Depending on the product and the scope of the tests, scientific partner institutions and organizations conduct product-specific, microbiological, chemical and physical laboratory tests on behalf of DLG and in accordance with recognized official examination procedures.