Naturally gluten free beer: the UK guide for coeliacs who don't compromise

Most “gluten free” beer on a UK supermarket shelf was brewed from barley. The brewery added an enzyme at the end to chop the gluten into fragments small enough to pass the legal 20ppm test. The label says gluten free. The ingredients list says contains barley.

That is not what you are searching for here.

Naturally gluten free beer (NGCI in the trade) is brewed from grains that never contained gluten. Sorghum, millet, buckwheat, rice, quinoa. No barley. No enzyme stage. No threshold to argue about.

For coeliacs who have been burned by gluten removed beer once, the distinction is the whole reason to read on. This guide covers what NGCI actually means, why it matters when the legal threshold says both types are fine, which UK beers genuinely qualify, and where to buy them.

What does “naturally gluten free beer” actually mean

Naturally gluten free beer is brewed entirely from grains that never contained gluten. The shorthand on labels is NGCI, which stands for No Gluten Containing Ingredients. Common base grains include sorghum, millet, buckwheat, brown rice, quinoa and maize. No barley, wheat or rye touches the mash at any stage.

This is a different category from gluten removed beer, which starts with barley and uses an enzyme to chop the gluten protein into pieces small enough to fall below the legal threshold. Both can carry the words “gluten free” on a UK pack. Only NGCI describes a beer that was gluten free by ingredient rather than by intervention.

NGCI is a voluntary descriptor in the UK; “gluten free” is the legally defined term (below 20ppm). The voluntary NGCI label exists because below 20ppm is not the question some coeliacs are asking.

Naturally gluten free vs gluten removed: why it matters

Coeliac UK treats both types as acceptable below 20ppm. Many coeliacs accept that and drink whichever brand they like. If that is you, the rest of this section is informational.

For coeliacs who have reacted to gluten removed beer that legally counts as gluten free, the problem sits with the test. The R5 ELISA test brewers use to measure gluten was designed for whole proteins. In fermented beer, the enzyme has already broken those proteins into smaller fragments. The R5 test can underread those fragments, and some remain immunogenic. The FDA considers R5 ELISA unsuitable for fermented and hydrolysed foods. AOECS, the umbrella body for European coeliac societies, acknowledges in its position paper that “producers cannot fully control the hydrolysis process”.

This is why beer that qualifies as “gluten free” in the UK cannot carry that claim in Australia or New Zealand, where the standard requires no detectable gluten, nor in Canada, where regulators object to “gluten free” claims on barley-based beer because gluten removal cannot be reliably verified. In the US, the TTB, which regulates beer labels, prohibits “gluten free” on barley-based beer and permits only language such as “crafted to remove gluten”, accompanied by a disclaimer. Same product, different regulatory calls. The international disagreement is a genuine scientific one.

NGCI beer sidesteps the argument. There is no gluten to remove, so there is nothing to mismeasure. For the strictest reading of coeliac safety, that is the appeal.

If you want a single label cue, look at the allergen line. By UK law, a gluten removed beer made from barley must declare “contains barley”. An NGCI beer cannot, because no barley went into it.

Which grains make naturally gluten free beer

The shortlist is small.

• Millet. The most common base grain in UK NGCI craft beer. Malted millet behaves a lot like pale malt and gives the cereal backbone most drinkers recognise as “beer”.
• Sorghum. Lighter, slightly sweet character. The original NGCI base grain in the UK market thanks to Greens.
• Buckwheat. A pseudocereal rather than a grass. Earthy, nutty notes. Usually used alongside millet.
• Brown rice. Neutral; gives the beer cleanliness without much flavour load.
• Quinoa. Pseudocereal. Adds protein and a slight earthy note. Used by Altgrain.
• Maize. Used as an adjunct in some recipes. Watch the full ingredient list; maize is sometimes paired with barley malt in beers labelled gluten free, which puts them in the gluten removed camp.

A note on oats. Oats are gluten free by botany but contaminated with barley or wheat across most of the supply chain. Standard porridge oats are not safe for coeliacs. GF certified oats grown and processed in dedicated facilities are. If you see oats in a beer claimed as NGCI, the brewery should be willing to confirm GF certification.

Grains that disqualify a beer from NGCI: barley, wheat, rye, spelt, emmer, einkorn. Any of them in the ingredient list and the beer is not naturally gluten free, regardless of the front of the can.

The naturally gluten free beers worth knowing in the UK

The Free From Beer directory lists beers across both categories. The naturally gluten free roster is genuinely small. These are the ones currently confirmed as naturally gluten free in the directory.

Altgrain Random Pale Ale

5% ABV pale ale brewed in a dedicated NGCI facility in Essex. Grain bill is malted millet, buckwheat and quinoa. No barley anywhere in the building. American-style framing, British finish, citra hops doing the aromatic work. The UK reference point for a session pale ale without an enzyme step.

Greens India Pale Ale

5% ABV IPA from the brewery that introduced the UK to gluten free beer back in 2004. Brewed at De Proef in Belgium and distributed widely. The grain base is sorghum, millet, buckwheat and brown rice. Hop-forward for the style without being aggressive. The reliable NGCI IPA when you want the style category covered.

Greens Dry Hopped Lager

4.0% ABV lager on the same multigrain base as the IPA. Light, drinkable, hopped a little harder than a continental lager. If you have been missing a session lager you can actually trust, this is the easiest entry point in the directory.

Greens Dubbel Ale

7% ABV Belgian-style dark ale. Same NGCI grain base, fermented warm in the Belgian tradition. Darker, richer, fewer comparable options. Worth the entry to anyone who used to drink Chimay or Westmalle and assumed the style was off the menu.

Greens Tripel Ale

8.5% ABV Belgian-style golden strong ale. The high end of the NGCI category and the only Tripel currently in the directory. Not a session beer. A reminder that NGCI does not have to mean light and timid.

Two caveats. Greens also brews a Premium Pilsner that is gluten removed (barley malt with the gluten taken out) rather than NGCI. Same brewery, different categories; the ingredient list tells you which is which. Several other breweries in the directory (Bellfield, Brass Castle, Brightside, Hambleton, Triple Point) brew gluten removed beer rather than NGCI. Worth knowing if you find their cans in a supermarket and you cannot tolerate gluten removed.

Where to buy naturally gluten free beer in the UK

Strictly NGCI beer has very limited supermarket presence. The bulk of “gluten free” beer in Tesco, Asda, Waitrose and Morrisons is gluten removed: Peroni GF, Stella Artois GF, San Miguel GF, Daura Damm, BrewDog Vagabond. None of those are NGCI.

The realistic NGCI routes are:

• Direct from Altgrain for the Essex-brewed NGCI range. Mix boxes available, cans shipped UK-wide.
• Specialist online retailers for the Greens range. Beerhunter and Best of British Beer are the established stockists.
• Beers of Europe for the occasional continental NGCI import, such as Riedenberger from Germany.

The trade off is straightforward. A smaller catalogue, slightly more effort to buy, and the certainty of what is actually in the bottle. For most coeliacs who have made the move, that trade is the point of making it.

Reading the label: how to know it is actually naturally gluten free

Five checks before you part with your money.

1. The allergen statement. “Contains barley” or “contains wheat” means gluten removed, regardless of any “gluten free” claim on the front. The allergen line is legally required and overrules the marketing copy.
2. The grain list. Sorghum, millet, buckwheat, brown rice, quinoa, maize. If those are the only grains, the beer is NGCI.
3. “NGCI” or “No Gluten Containing Ingredients”. A voluntary label used by dedicated NGCI breweries. When present, definitive.
4. The Crossed Grain Trademark. Confirms below 20ppm and annual lab testing. Applies to both NGCI and gluten removed beer. Reassuring, but never on its own a confirmation of NGCI.
5. Enzyme references. Any mention of “gluten reduction process” or “brewed and treated to remove gluten” means gluten removed.

Shortest version: read the allergen line first. Contains barley means gluten removed. Grain list of millet, buckwheat, sorghum or rice means NGCI.

Frequently asked questions

Is Peroni Gluten Free naturally gluten free or gluten removed? Gluten removed. Peroni Gluten Free is brewed from barley malt and enzyme treated to reduce gluten below 10ppm. The label states “contains barley”. Certified by the Italian Celiac Association at the 10ppm threshold, but not NGCI.

Are there naturally gluten free beers at Tesco or Asda? Almost none in 2026. Major supermarkets stock predominantly gluten removed beer. For NGCI, specialist online retailers and direct from brewery are the routes that actually work.

Can coeliacs drink gluten removed beer? Coeliac UK says yes below 20ppm. The R5 ELISA test used on fermented beer is acknowledged by AOECS as imperfect, and a meaningful number of coeliacs report reactions to gluten removed beer that legally passes. If that includes you, NGCI is the safer category.

What does the Crossed Grain symbol mean on beer? It confirms below 20ppm, verified at a UKAS accredited lab with annual testing and annual facility audits. It does not tell you whether the beer is naturally gluten free or gluten removed.

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If you want to browse the full NGCI category in one place, the beer directory lists every naturally gluten free beer currently tracked, with grain bills, ABV and where to buy.