Phone: +49 (0) 831 960878-0
E-Mail: info@DRRR.de
Modern and clean testing laboratory for proficiency testing
Various foods (fish, nuts, fruits and vegetables) on a wooden table

Proficiency testing “Food and feed”

With our proficiency testing program for food and feed, we offer you a comprehensive selection of various matrices (dairy products, animal and plant foods, beverages, feed and much more). Over 300 proficiency tests from the following disciplines are available to choose from:

chemical-physical testing

e.g. for ingredients and additives, residues and contaminants (e.g. mineral oil, PFAS), pesticides

immunologic, molecular biologic, microbiologic testing

e.g. indicator organisms (including E. coli, enterobacteria, yeasts and molds) as well as pathogenic germs of risk groups 2 and 3** (including salmonella, listeria, clostridia and EHEC in real matrices).
In addition, we offer you proficiency tests for the determination of animal species, allergens and genetically modified organisms (GMOs).

organoleptic (sensory) testing

e.g. triangle test, ranking test, simple descriptive test, profile test


Search your parameters directly in our online store:  Here you can find the Onlineshop


The following matrices are available:


For the year 2025, we have included the following new proficiency tests in the program, among others:

PFAS in meat and PFAS in vegetables

Many perfluorinated and polyfluorinated substances (PFAS) are subject to various restrictions in the EU. For example, PFOS, PFOA, PFNA and PFHxS are assigned with maximum levels in selected foods introduced in the Contaminants Regulation (EU) 2023/915. Commission Recommendation (EU) 2022/1431 also recommends monitoring the presence of other PFAS in food, including PFDA, PFBS and PFOSA. Our proficiency testing program offers you the opportunity to check your analysis of a large number of PFAS.

MCPD and glycidol in infant formula

The content of MCPD and glycidol is subject to legal requirements regarding the maximum content according to Regulation (EU) 2023/915. The following parameters are queried in our PT:
- 3-MCPD (sum of 3-MCPD and 3-MCPD fatty acid esters)
- Glycidyl fatty acid esters, expressed as glycidol

Hydrocyanic acid in linseed

The content of hydrocyanic acid in linseed is subject to legal requirements regarding the maximum content according to Regulation (EU) No 2022/1364. The proficiency test offers you the opportunity to check your analysis with regard to the legal requirements.

Detection of B. cereus milk

The PT 2025 is offered with the matrix milk instead of milk powder.

Counting Campylobacter spp. Poultry

In addition to the qualitative detection of Campylobacter spp. in poultry, which has been established for years, the parameter will also be offered quantitatively for the first time in 2025, because the quantitative analysis was added to the normative method.

Counting Campylobacter spp. Poultry

Furthermore, the portfolio of Listeria proficiency tests will be extended in 2025 to include qualitative detection in the feed matrix.


Reference material food and feed

In addition to our proficiency tests, we offer certified reference material. This is available in all areas in which proficiency tests are also offered. The application possibilities are manifold, whether for keeping control charts, for validation between two proficiency test participations or for training of employees.

Click here to go directly to the reference material “Food and Feed”.