Submitted by OgilvyAgency IPI Score 95/100

The Moldy Whopper

Content Creation

Ogilvy, through DAVID Miami and INGO Stockholm, proved the Whopper had no artificial preservatives by filming a real burger decomposing over a month, work the agency reports won a Cannes Lions Grand Prix.

Case in 60 seconds

Burger King had removed artificial preservatives from the Whopper, but telling consumers a fast-food burger has no preservatives is a claim few would simply believe.

Food with no artificial preservatives behaves like real food; it decays, which is proof rather than a flaw.

Show, do not tell: film a real Whopper decomposing over a month and treat the mold as evidence of no artificial preservatives.

Ogilvy, through DAVID Miami and INGO Stockholm, produced a time-lapse film and out-of-home visuals of the decaying burger, letting a single striking image carry the argument.

No reach, sales, or perception figures are published; the agency lists a Cannes Lions Grand Prix and a One Show Best of Show. Detail is self-reported and not independently verified here.

Strategy Breakdown

The primary strategy-learning section — interpretation, not a press-release summary.

Fast-food consumers who would find a no-artificial-preservatives claim about a burger hard to believe.
Fast food is widely assumed to be full of preservatives, so a claim to the contrary risks sounding hollow.
The reformulation needed proof audiences would actually believe, not another advertising assertion.
Burger King positioned honesty about its food as a statement, willing to show something unappetising to prove a real change.
An honest demonstration of decay is more persuasive than a claim, because it lets consumers draw the conclusion themselves.

Creative & Execution System

Assets & channels

  • Time-lapse film of a decomposing Whopper
  • Out-of-home visuals of the moldy burger

Partners

  • Ogilvy (DAVID Miami and INGO Stockholm)

Participation mechanic

  • Not disclosed

Creator role

  • Not disclosed

Why Ogilvy's strategy worked

  1. 1

    Replacing a hard-to-believe claim with an honest demonstration made a reformulation credible.

  2. 2

    Showing decay as beauty was a deliberate rule-break that earned attention for an ingredient story.

  3. 3

    Letting a single striking visual carry the argument kept a complex claim simple and memorable.

  4. 4

    Treating the mold as evidence turned an unappetising image into proof rather than a liability.

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