What the scheme fixes
It is a certification scheme for wood pellets operated by a European industry body, built on the graded wood pellet specification. Producers and traders are certified, each certified operator carries an identification number, and that number is printed on the sack.
What the scheme adds to the specification is verification and traceability: production is audited, samples are tested, and the requirements extend past the factory gate into storage and delivery. The reason that matters is physical rather than bureaucratic — a pellet is hygroscopic and fragile, and a pellet that met its grade at the press can fail it after bad handling.
The identification number is the part a buyer can actually use. It says which certified operator stands behind the sack.
What it does not promise
It does not promise a pellet suits your appliance. That remains the appliance manufacturer’s statement.
It does not promise anything about a sack that has been stored badly after it reached you. Certification follows the chain up to delivery; the garage is yours.
And it does not make two certified pellets identical. A grade is a set of classes, and two products at the same grade can differ within those classes — which is why owners who have tried several brands at the same grade report different cleaning intervals and are not imagining it.
The documents that sit beside it
It rests directly on the graded wood pellet specification, which supplies the classes. It sits beside a separate certification mark operated by a German certification body, which does a comparable job through a different scheme, and a sack may carry either.
The appliance standard for pellet appliances is the third leg: it is what makes the appliance’s figures conditional on a stated grade in the first place.
Where it appears on this site
On the pellet family above all, where a scheme name and an identification number are among the few things a listing reliably publishes, and on the pellet appliances whose figures depend on the fuel.
Where a listing prints a scheme name without a number, the page says so. A scheme name is a claim; a number is a claim somebody can be held to.
Questions that keep arriving by post
Is the identification number worth checking?
It is the one thing on the sack that points at a specific certified operator rather than at a category. What you do with it is your business; that it is there, and that a listing publishes it, is what this site reports.
Why does certification extend to delivery?
Because a pellet absorbs moisture and breaks into fines when it is handled badly, and both are classified properties. A scheme that stopped at the factory gate would certify something that no longer exists by the time it reaches a buyer.
Are two sacks at the same grade the same pellet?
No. A grade is a set of classes, and two products can sit at different points inside the same class. Owners who report different cleaning intervals between certified brands are describing something real.
Last reviewed 22 September 2026