Is Mahou gluten free?

It depends which Mahou you are holding. Standard Mahou Cinco Estrellas is a barley lager and contains gluten, so it is not safe for coeliacs. Mahou also makes a separate beer, Mahou Cinco Estrellas Sin Gluten, which is brewed from the same barley recipe and then treated to remove the gluten below the legal limit. Mahou’s own product page says that one is suitable for people with coeliac disease. So the answer turns entirely on which can you pick up, and the two are easy to mix up on a shelf.

The two Mahous, and why it matters

The everyday Mahou, the green five star lager you see in Spanish bars and on UK shelves, is Cinco Estrellas. Mahou’s own ingredient list gives it as malta de cebada, barley malt, alongside water, corn and hops, at 5.5 percent. Barley carries gluten, and standard Cinco Estrellas goes through no step to remove it. For a coeliac that is a no.

Mahou Cinco Estrellas Sin Gluten is the other one. Same brewer, same base recipe, sold in a near identical can with the words Sin Gluten on it. That label is the whole distinction. If it does not say Sin Gluten, treat it as a normal barley beer.

What Mahou Sin Gluten actually is

Mahou launched Sin Gluten in 2016, the first gluten free beer from the Mahou San Miguel group, which is the biggest brewer in Spain. It was developed with FACE, the Spanish coeliac federation, and Mahou markets it as the Cinco Estrellas taste for everyone. ABV is 5.5 percent, the same as the standard. Ingredients are water, malt, corn and hops.

It is not a niche specialist product. It is a mainstream lager from a major brewer that happens to be made safe for coeliacs, which is part of why it is worth knowing about.

How the gluten is removed

Sin Gluten is what is usually called a gluten reduced beer. It starts as a barley beer, then an enzyme is added that breaks the gluten protein into pieces too small to trigger the standard test. That brings the finished beer below 20 parts per million, which is the threshold a beer has to be under to carry a gluten free label in the UK and EU. Coeliac UK accepts beers tested below 20 parts per million as suitable for most coeliacs.

Here is the part that catches people out. Because barley is still used to brew it, allergen law requires the label to keep a contains barley statement even on the gluten free version. That wording is what sends coeliacs to Reddit asking whether the beer is really safe. It is, for the great majority, and the barley note is a labelling rule rather than a warning that the gluten is still in there. A small number of very sensitive coeliacs prefer beers brewed without barley at all, from grains like rice or sorghum, and that is a reasonable personal call.

Where to buy Mahou Sin Gluten in the UK

This is the awkward bit. Standard Mahou turns up in UK supermarkets, but the Sin Gluten version is not widely stocked here. A search for it often lands you on a supermarket page for the ordinary barley beer, which is exactly the wrong product for a coeliac. Read the can, not the listing.

The reliable UK routes are Spanish import specialists that ship here, such as Your Spanish Shop, Social Gluten and Beers of Europe in King’s Lynn. In Spain itself it is a mainstream supermarket beer, easy to find in Mercadona, Carrefour and El Corte Inglés, and on tap in plenty of bars, so it is a simple one to track down on holiday.

If you want a Spanish gluten free lager that is genuinely easy to buy in the UK, Daura Damm is the one. It is more widely distributed and, unlike Mahou, every batch is independently tested below 3 parts per million.

What it tastes like

It tastes like the standard Cinco Estrellas, which is the point of it. Golden, clean, a touch of fruit on the nose, moderate bitterness, the easy going Spanish lager profile that people order without thinking. The London Beer Competition gave it a silver in 2022 with judges noting a well balanced body and a good bitter finish.

As gluten free lagers go it is competent rather than remarkable. Daura is the more decorated of the two big Spanish options and has the stronger test record, but if you already like ordinary Mahou, the Sin Gluten will not feel like a compromise.

What to drink instead

If you cannot find Mahou Sin Gluten, or you want a gluten free lager with a clearer test trail, a few in our directory cover the same ground:

• Daura Damm, 5.4%. The obvious Spanish swap. Barley based and enzyme treated like Mahou, but certified by the Spanish National Research Council below 3 parts per million, the strongest evidence trail of any lager we cover.
• Track Arosa Helles, 5.2%. A crisp German style helles, tested below 20 parts per million, for when you want a clean continental lager at a similar strength.
• Hambleton GFL, 5.2%. A straightforward gluten free lager from a Yorkshire brewer, easy to get hold of in the UK.

For more in this style, see our guide to gluten free lagers, or browse the full beer directory.