DLG e.V. - DLG quality test tea

The DLG tests Tea and Infusions

Fotolia 39783993 L

In the DLG Quality Test for Tea and Infusions each product is tested in accordance with scientific quality standards and an expert report certified in compliance with DIN and ISO is produced.

Range of tested products:

  • Tea
  • Infusions
  • Instant tea

Test criteria in the sensory test:

  • appearance of the dry product
  • appearance of the brew
  • odour
  • taste

Instant teas are sampled hot or cold according to the recommended instructions.
The evaluation occurs on the DLG-5-point-scale

Microbiological examination of the dry product:

  • Total germ count (aerobic germ count)
  • Yeasts (except mint)
  • Mould fungi
  • Enterobacteriaceae
  • Escherichia coli
  • Listeria monocytogenes
  • Salmonella

Analytic testing of instant tea (parameters are depending on product)

Tea and Tea beverages that pass the DLG tests receive the “DLG award winner” medal in Gold, Silver or Bronze.

DLG TestService GmbH

Certification Unit
Location: Frankfurt am Main
Eschborner Landstr. 122
60489 Frankfurt/M.
Tel.: +49(0)69 24 788 - 351
Fax: +49(0)69 24 788 - 115

Anika Schramm

Tel.: +49(0)69/24 788-357

Information and registration material

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