What is the crossed grain symbol, and should I only buy products that have it?
Short answer
It’s a reliable green light, but not the only one. The crossed-grain symbol is the certification mark of the Association of European Coeliac Societies (AOECS), licensed to national societies like Coeliac UK and the DZG. It means a product has been independently audited to contain less than 20 ppm gluten. Its absence, though, doesn’t mean a product contains gluten: in regulated markets the legal “gluten free” definition applies to every product using the claim, symbol or not.
That little stylised ear of wheat with a line through it is one of the most reassuring sights on a supermarket shelf. Here’s what it certifies, and why you don’t need to buy only products that carry it.
What the symbol certifies
The crossed-grain symbol is licensed to national coeliac societies across Europe: Coeliac UK, the Deutsche Zöliakie Gesellschaft (DZG) and their equivalents. When a product carries it, that product has been independently audited and verified to meet the less-than-20 ppm standard. If you see the symbol, you can be confident the gluten-free claim has been checked by a third party, not just asserted by the maker.
Why its absence isn’t a warning
Here’s the part that saves you money and stress: plenty of products are labelled “gluten free” without carrying the AOECS symbol. In regulated markets (the EU, UK, US and Australia) the legal definition of “gluten free” applies to every product using that claim, whether or not it pays for a third-party logo. Supermarket own-brand ranges and many manufacturer products are tested and compliant without the mark.
| What’s on the pack | What it tells you | How much to lean on it |
|---|---|---|
| Crossed-grain symbol | Independently audited to ≤ 20 ppm | A reliable green light |
| “Gluten free” text, no symbol | A legal claim; self-tested / compliant | Usually fine in regulated markets |
| Clean-looking ingredients, no GF claim | No formal gluten-free assurance | Treat with caution |
| Imported / market-stall, no claim | Unregulated: nothing checked | Most caution of all |
The bottom line
The crossed-grain symbol is a reliable green light, and a lovely shortcut when you’re shopping fast. But a “gluten free” label without the symbol is usually just as compliant in a regulated market. Where you’d want to slow down is a product with no gluten-free claim at all: that’s the one leaving you without formal assurance.
Where to go next
- What the words alone guarantee: Does “gluten free” mean zero gluten?
- The precautionary line explained: “May contain gluten” — can I eat it?
- Reading the whole label: Reading Food Labels.
- Back to the full set: Gluten-Free Label Reading FAQ.
Sources: AOECS gluten-free standard and crossed-grain symbol; Coeliac UK; Codex Alimentarius gluten-free standard (≤20 ppm). General information, not individual medical advice.
Last verified: 2026-07-20.
Reviewed against the HTGF methodology: every claim sourced, every listing tiered and dated. This article is practical guidance, not medical advice.
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