Reviews
Part of What packaging marketing reviews mean for buyers and specifiers
Rate the method or the packaging? Reviewing packaging marketing evidence
How packaging marketing claims are reviewed: what gets assessed, how vendor claims differ from independent evidence, and where England buyers check due diligence.
What to take away
- A buyer in Leeds comparing two unboxing agencies gets two glossy decks and nothing to separate them. This method scores the claim, not the box.
- Vendor claims and independent evidence sit in separate columns. Marketing copy shows what a supplier says, not that it worked.
- We run no hands-on tests or shopper panels. We read published documents and label editorial judgement as judgement.
- Compliance checks start with published ASA rulings, because a pack can be legal while its claim misleads.
- Scores carry a date. A method that passed in 2025 may fail once its evidence goes stale.
What a packaging marketing review covers
The review assesses the brief, the measurement plan, the sample, the reporting and the compliance record. It does not judge how a box looks.
Each review answers four questions: what was claimed; what evidence was supplied; can it be checked against a public source; what is left to editorial judgement?
The last question matters most: supplier decks rarely separate measured outcomes from confident assertions. These questions follow the order in the packaging marketing reviews and comparison methods for the 2027 cycle, so a score here can be read alongside that wider comparison. The packaging marketing providers in England round-up names the firms to test against.
How claims are sorted
Every claim goes into one of three buckets. A vendor claim is a supplier statement with no checkable source. The supported bucket is for claims a named document, dataset or ruling backs. Anything else counts as judgement, and it is labelled as judgement.
Sorting a packaging claim
Does a named document, dataset or ruling back it?
Supported claim
Is it a supplier statement with no checkable source?
The published ASA rulings are a due diligence check because they show how the advertising codes have been applied to packaging and promotional claims. A claim that echoes a previously upheld complaint gets flagged. The CMA's Green Claims Code, published in September 2021, is a dated example of a public source the check draws on.
Worked example, illustrative: a supplier deck claims its recycled carton lifted repeat orders by 30 per cent. The deck shows one line and no file, so the claim sits in the vendor bucket.
The same supplier later sends the test plan, the control group and a dated results file. The claim moves to the supported bucket and is scored on that file.
What is assessed and what is not
Assessed: the measurement plan, the sample size, the time period, the audit trail and the compliance record. Not assessed: print quality, structural engineering, shelf impact or whether shoppers liked the pack.
Assessed versus not assessed
Assessed
- Measurement plan
- Yes
- Sample size
- Yes
- Time period
- Yes
- Audit trail
- Yes
- Compliance record
- Yes
- Print quality
- No
- Shelf impact
- No
Not assessed
- Measurement plan
- No
- Sample size
- No
- Time period
- No
- Audit trail
- No
- Compliance record
- No
- Print quality
- Yes
- Shelf impact
- Yes
Sample size matters more than most briefs admit. A test on 40 orders proves little about repeat purchase across a season. A controlled test on 4,000 orders over a stated period is a different object entirely.
Demographic data can anchor audience assumptions before a test runs. The ONS household characteristics data covers internet access and online shopping behaviour, the right input for sizing an online audience instead of guessing at it.
How scores are set
Scores come from the evidence trail, not from impressions. A method with a named sample, a control and a dated report can score well even if the creative is dull. A beautiful box with no measurement plan cannot.
Scores run from 0 to 5 in half points. A good score is 4 or higher, which means every headline claim sits in the supported bucket with a named document and a review date. A 3 means the method is checkable but the evidence is partial. Below 2 means vendor claims lead and no public source backs them.
How scores are kept honest
Every score carries a review date and a note of what would change it. If the vendor later publishes the underlying data, the score moves. If a ruling or a standard shifts the ground, it moves again.
For AI-assisted personalisation or design tools, standards guidance is part of the check. The BSI guidance on AI sets out the assurance questions that apply when AI touches packaging design, where supplier confidence often outruns documentation.
Glossary
- Vendor claim
- a supplier statement with no checkable source.
- Supported claim
- a claim backed by a named, dated document or dataset.
- Control group
- a comparison set that saw no change.
- Review date
- the point at which a score is rechecked.
How this fits the wider method
Buyers who want the shortlist view rather than the method view should start with the packaging marketing providers in England round-up, then return here to test the evidence behind each shortlisted claim. The scoring rules stay the same whichever route a reader takes.
Common questions
Do you test the packaging yourself?
No. We assess documents, sources and methods.
What happens when a vendor refuses to share data?
The claim stays in the vendor claim bucket and the review says so plainly. A refusal does not prove a weak method, but the claim cannot be scored as supported.
How often are scores rechecked?
Scores carry a review date and are rechecked when a vendor publishes new evidence or a standard changes. A score without a current date should not be relied on.
Can a high score be bought?
No. Scores follow the evidence trail and the compliance record. There is no paid placement, and no vendor sees a score before publication.
