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BarthHaas testing guarantee

Quality testing and
active ingredient analysis

The BarthHaas testing guarantee focuses on the comprehensive quality testing and active ingredient analysis that our hops and hop products undergo, rather than a 100% purity test of these products. Details of the testing program:

The BarthHaas testing program for European hops

  • Whole hops are made into mixed samples, each representing between 25 and 30 tons of hops.
  • Most of the samples are sent to the NATECO2 laboratory in Wolnzach, a world-leading lab in pesticide residue, where they are analyzed for 87 active ingredients.
  • The NATECO2 standard analysis does not include all active ingredients that are permitted for use in European hop cultivation. Two classes of active ingredient are not analyzed by NATECO2.
    I: Suspected active ingredients/active ingredients, residues of which have been shown empirically to be problematic.
    II: Active ingredients, the residues of which have never reached the current maximum amounts during our long-standing testing program.

Based on current knowledge, there are no class I active ingredients. The classification of permitted active ingredients is verified each year.

  • As an additional control, at least 20% of the mixed sample is analyzed by the independent Eurofins SOFIA laboratory in Berlin. This ensures that at least all permitted active ingredients (including the aforementioned classes I and II) are analyzed.

The BarthHaas testing program for hops from the USA

  • For pellet products (T90/T45/Isopellets), whole hops are put into mixed samples, each representing between 20 and 40 tons of hops.
  • With regards to hop processing to produce CO2 extract or IKE, mixed samples comprising whole hops or pre-manufactured CO2 pellets in batches of 45 to 90 tons are sent for analysis.
  • Most samples are investigated by Pacific Agricultural Laboratory (PAL) in Portland, Oregon (USA).
  • The PAL standard analysis does not include all active ingredients that are permitted for use in US hop cultivation. There are also two classifications of active ingredient here:
    I: Suspected active ingredients/active ingredients, residues of which have been shown empirically to be problematic.
    II: Active ingredients, the residues of which have never achieved existing maximum amounts in the scope of our long-standing testing program.

There are no current known class I active ingredients. The classification of permitted active ingredients is verified each year.

  • At least 20% of the aforementioned mixed samples are analyzed by other independent laboratories to cover at least all of the active ingredients (including classes I and II) that are permitted for use in the USA.

The BarthHaas testing program for hops from Australia

  • Each sample is taken either from bales or directly from the drying beds and represents 40 tons of whole hops.
  • The samples are analyzed in an external laboratory, Agrifood Technology, in Werribee, in the Australian state of Victoria.
  • Agrifood analyzes a total of 336 active ingredients, which include all pesticides used in the cultivation of hops and neighboring crops.

The BarthHaas testing program for hops from other growing areas

  • In the case of other growing areas, batches of up to 30 tons per batch, comprising either whole hops or sample product mixtures, are sent for analysis.
  • All samples are analyzed at one of the laboratories mentioned above.


The BarthHaas testing program for advanced products

  • \Representative product samples of each product type are analyzed for the entire inventory of advanced products. Since July 2003, production has been entirely based on tested whole hops or subject to product-specific testing. Products that are manufactured using untested inventories are subject to further random sample testing.
  • With regards to hop processing to produce advanced products, 45 to 90 tons of mixed samples comprising whole hops or pre-manufactured CO2 pellets are subject to analysis. All samples are analyzed at one of the laboratories mentioned above.

Validity of the BarthHaas testing guarantee

The BarthHaas testing guarantee applies to hops and hop products that have been manufactured by the following companies of the BarthHaas Group:

  • Joh. Barth & Sohn GmbH & Co. KG: since 2012 harvest
  • BarthHaas UK Ltd.: since 2013 harvest
  • John I. Haas Inc.: since 2013 harvest
  • Hop Products Australia: since 2014 harvest
  • Simply Hops Ltd.: since 2014 harvest

We only allocate and release hops for processing once we have the results of the analysis back from the lab. If exceptional circumstances dictate that this is not possible due to a tight turnaround , mixed samples of the finished product, representing up to 30 metric tons, are tested according to the NATECO2 standard.