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 is unsafe: 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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