Beers Tested for Gluten

Disclaimer:  These are only tests of samples; and accordingly, this is not a guarantee as to whether the tested food contains the tested substance.

Summary:  As of Feb 2015, all 4 of the 6 beer tests were negative for gluten. For more information on beer and gluten, see the the information below from the ELISA test supplier* and read this article.


  • Budweiser | 2014 Oct 13 23:04 | NEGATIVE*More...
  • Budweiser | 2014 Oct 13 21:37 | POSITIVE* | More...
  • Bud Light | 2014 Oct 13 | NEGATIVE*| More...
  • Bud Light | 2014 Oct 11 | POSITIVE*More...
  • Coors Light | 2014 Oct 13 | NEGATIVE* | More...
  • Corona | 2014 Oct 13 | NEGATIVE* | More...







* Soy sauce and beer are the two most difficult items to test, using any kind of kit, because of the malting, fermenting, and/or hydrolyzation that the grains undergo. These processes break apart the natural protein structure of the grains — in many cases making them completely undetectable and unlikely to trigger a celiac response. I hope I can provide some clarity into the results you are seeing.

GlutenTox Home and Pro will generally provide results comparable to a Sandwich ELISA test, which is the most common, internationally recognized, and repeatedly validated type of lab test available to date. Both of these types of test require the overall gluten molecule to have at least two epitopes, or two repetitions, of whichever sequence of amino acid the test antibody is looking for, in order to “catch” the molecule and count it .

In the case of GlutenTox, the G12 antibody is set to detect a sequence found on the 33mer peptide of the alpha gliadin molecule — the precise peptide that is known to trigger the majority of celiac responses. The sequence is found 3 times on this peptide, so if the peptide (itself a very small part of the overall gluten molecule) is at least 2/3 intact the kit will count it.

There is a less common and less frequently used type of test called a Competitive ELISA, which can detect single epitopes. If you are familiar with Omission Beer, this is the structure of test that they advertise testing their barley-inclusive beers with. Because of fermentation, the barley gets broken down so much that even a competitive ELISA is unable to detect anything that would trigger a celiac response. Although their marketing materials make this seem unusual, it is not; anecdotally we’ve tested a handful of beers in our lab and found that several common, mass-market beers have <5ppm of detectable gluten, whether tested with GlutenTox, a Sandwich ELISA, or a Competitive ELISA.

Naturally fermented soy sauce has a similar process, although the fermentation goes on for months instead of days. I’ve attached a study done on a variety of soy sauces, with a variety of test kits including Competitive ELISAs, that shows many soy sauces have zero detectable gluten.

2014 December 22

Emily Kaufman
Emport, LLC
More safe food, more happy people
Quality control and allergen test kits
866.509.4482 • 718.717.2353

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