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Proposed: The Truly Gluten-Free Standard for Beer (GFB-TGF, draft v0.1)

The category has no shared definition of its own product. The FDA floor says under 20 ppm; marketing says whatever it wants; and the beers celiac drinkers actually trust are defined by something neither captures — what never went in. This draft writes that definition down as a standard the field can adopt, test, or tear apart.

Status: proposed, draft v0.1, never ratified by anyone. This is the standards-shaped version of the site's operating doctrine — the reader-facing case lives on Truly Gluten-Free, and this page exists so a brewery, certifier, or researcher can engage the definition as a document rather than an ethos.

Scope​

This standard defines the product class truly gluten-free beer: beer for which the gluten-free claim rests on ingredient identity and documented custody, not on removal processing. It is written for brewers making the claim, buyers verifying it, and organizations that certify or study it. It does not replace regulatory compliance — it sits above the regulatory floor, in exactly the space the floor doesn't cover.

The definition​

Beer conforms to this standard when all four hold:

  1. Ingredient exclusion. No wheat, barley, rye, or oats — in any form, at any stage, in any amount. Not as grain, malt, extract, flavoring, colorant, or processing aid. Gluten-removed and gluten-reduced processing does not create conformance; the excluded grains simply never enter.
  2. Input verification. Every ingredient that enters the beer — grain, malt, enzymes, yeast, nutrients, processing aids — carries documented gluten-free status from its producer. Fermentation-derived inputs (yeast, enzymes) are verified for growth-substrate and formulation gluten, in writing.
  3. Custody and cross-contact control. Documented identity and cross-contact controls from field to package: agricultural custody at the source, acceptance testing at handoffs, process controls on shared equipment, and records connecting every lot to its evidence.
  4. Pre-fermentation evidence, no-detected-gluten reporting. The conformance record shows the wort met gluten-free status before fermentation — because current assays cannot reliably quantify gluten in fermented products — and any gluten testing is reported as no detected gluten by a stated method with its stated limit, never as a bare "<20 ppm" treated as a definition.

Why ingredients, not removal​

The asymmetry is structural, and the regulators already concede it: the required U.S. labeling for gluten-removed malt beverages states that gluten content cannot be verified. A claim that cannot be verified downstream must be built upstream — and upstream, the only bulletproof control is that the gluten never entered. This is the same records-first logic the FDA itself applies to fermented foods (21 CFR 101.91(c)): the law asks for pre-fermentation evidence because the finished-product test cannot carry the claim. This standard makes that logic the definition rather than the fallback.

Exclusions, with reasons​

  • Wheat, barley, rye — the gluten grains. No form, no amount, no exceptions.
  • Oats — excluded for two independent reasons: commodity oat supply is structurally cross-contaminated through rotation and shared handling, and avenin sensitivity affects a meaningful share of celiac consumers. "Purity protocol" oats address the first reason, not the second. The full case: Don't Use Oats.

Conformance language​

A brewery meeting this standard may accurately state: "Brewed to the Truly Gluten-Free standard: no wheat, barley, rye, or oats — ever — with documented gluten-free status for every input and custody records from field to package." Conformance is self-declared against records that would survive inspection; this document confers no certification, and publication does not make GFB a certifying body.

What adoption would mean​

For a brewery: the records in this standard are the records U.S. law already requires for a gluten-free claim on fermented products — conformance largely means organizing what compliance already demands, plus the ingredient line the market already rewards. For a certifier: a product-class definition sharper than the ppm floor, aligned with the fermentation-assay limits. For researchers: a defined product class whose members can actually be compared — today "gluten-free beer" in a dataset can mean three incompatible things.

What would change this standard​

Criticism and evidence, in the open: a validated assay for fermented-matrix gluten would weaken the pre-fermentation-only logic; purity-protocol oat data addressing avenin at population scale would reopen that exclusion; and field adoption experience will reshape the conformance language. Version history lives here — v0.1, first public draft, 2026-08-08.

Source and Validation Notes​

This draft codifies the operating standard developed and run at commercial scale by Bard's Brewing and published as this site's doctrine. The regulatory statements summarize the cited public rules and rulings on the labeling page; nothing here is legal advice, and conformance with this standard is not a substitute for regulatory compliance. Like every proposal in this workshop, it is published to be criticized — the definition improves in public or it doesn't deserve adoption.