CASE 245 / Pepsi / 1975
The Pepsi Challenge
A challenger invited people to compare the product before seeing the label.
AI-assisted research and analysis for the SNS Creative Fieldbook; published by SNS Media Tech. No named human reviewer is claimed.
Sources reviewed 2026-11-05
Campaign credits belong to the original creators. They did not write or endorse this analysis.
Credits: Pepsi / PepsiCo. The opened sources do not establish the original agency roster, so no historical agency attribution is asserted.
Recognition: No award recognition is claimed in this record.
Launch / edition: 1975. Award years: No award claim.
The problem. The idea. The experience.
The Pepsi Challenge is a blind-taste-test advertising platform that began in 1975, according to WFTV’s anniversary reporting. Pepsi’s own history describes inviting consumers to compare its cola with a competitor. This record groups the original platform and subsequent revivals rather than treating each tour stop or reformulation as a new campaign.
How the idea came to life
The essential action is to taste unidentified alternatives, state a preference and then learn which brand was selected. The 2025 revival compared Pepsi Zero Sugar with Coke Zero Sugar. That product scope matters: a result for those formulations cannot automatically establish preference for the original sugared drinks.
How it reached people
The 2025 activity used a national sampling tour; WFTV independently reported an Orlando stop. Pepsi’s December release lists markets and promotional settings. The participants were people reached by those activations, not a clearly documented probability sample of all consumers or all regular cola buyers.
Supporting sources: Primary brand retrospective → Independent local reporting → Primary brand release →
Read the data in context.
The numbers below describe different kinds of outcomes. Their date, scope and reporting source are part of the result.
Pepsi reported that its zero-sugar product led in every 2025 tour market. The release provides market preference percentages, but not enough methodological detail here to establish national representativeness or repeat-purchase effects. Its accompanying business-growth claims are not treated as changes caused solely by the taste challenge.
The creative mechanism.
A blind product comparison temporarily separates experience from brand expectation
Choose a comparison people can actually experience
A challenger can replace abstract superiority with an observable test, but only when the selected attribute matters in use. Identify what the demonstration measures and what it omits. A brief taste, touch or speed comparison may not predict satisfaction over a full serving or a long ownership period. State those limits before interpreting the result.
Make the procedure fair enough to be credible
Blinding does not remove every source of bias. Order, temperature, serving size, instructions and participant recruitment can change responses. For an adaptation, standardize conditions, randomize presentation order where appropriate and record neutral answers. Do not discard unfavorable results or let the demonstrator signal the preferred choice through tone or handling.
Let a reveal open reconsideration, not humiliation
The most useful reveal helps someone notice a gap between expectation and experience. It should not make them look foolish for their previous preference. Allow no preference, mixed responses and refusal to participate. Publish individual reactions only with explicit permission and avoid turning a customer’s uncertainty into a public joke at their expense.
Keep the claim within the tested boundary
A win among volunteers at selected locations is a statement about that test, not proof of universal quality. Specify the product version, population, question and period. Measure later choice separately if that is the business goal. Comparative advertising also needs appropriate substantiation and legal review before a result becomes a broad public claim.
The intended behavior loop
- 01Notice the distinctive invitation
- 02Understand the relevant brand role
- 03Choose whether to participate
- 04Recall or discuss the experience
Growth job: Challenge an established preference → enable direct comparison → prompt reconsideration. This is an interpretation of the mechanism, not an audited attribution model.
A direction to take into the room.
Original editorial interpretation and proposed adaptation. This is a proposed adaptation, not historical campaign execution or a forecast.
The transferable principle
Offer a fair, low-pressure comparison on a relevant attribute and describe the result no more broadly than the procedure supports.
Keep these boundaries
Do not present a small convenience sample as the whole market, selectively edit reactions or imply taste preference establishes health benefits.
Turn the lesson into a test.
Illustrative adaptation, not a historical campaign fact
A small-team experiment
A notebook maker compares two unbranded paper stocks with a consenting adult panel using the same pens and writing tasks.
Build the test
- Randomize which stock appears first and include a no-preference option.
- Record comments before revealing the supplier.
- Publish only aggregated findings with the panel size and test conditions.
Measure the right thing
Compare task-specific preferences and later voluntary choice; do not claim universal superiority.
Know when to stop
Stop if conditions cannot be kept comparable or participants feel pressured to select the sponsor’s stock.
How this reading fits your brief
Start with the useful part.
Best for: Challenge an established preference → enable direct comparison → prompt reconsideration
What to adapt: Offer a fair, low-pressure comparison on a relevant attribute and describe the result no more broadly than the procedure supports.
Prerequisites: Original creative development; Operational and rights review; A comparison and proportionate measurement.
Smaller-team route: A notebook maker compares two unbranded paper stocks with a consenting adult panel using the same pens and writing tasks. Constraint: Do not present a small convenience sample as the whole market, selectively edit reactions or imply taste preference establishes health benefits.
Budget: Not established by the cited sources. No cost-fit claim is made.
Trade-offs and evidence: Read the limits below before choosing a test. There is no guaranteed reach, sales lift or ROAS.
Questions for your next brief
- What customer tension does a blind product comparison temporarily separates experience from brand expectation address?
- What evidence would distinguish attention from a useful business or social outcome?
Sources & further reading.
Brand and award-entry results are attributed claims, not independent causal audits. Source links open the original third-party pages.
- PepsiCo: Pepsi brand history →Primary brand retrospective · Supports: Brand description of blind-test platform and anniversary revival.
- WFTV: Pepsi Challenge comes to Orlando →Independent local reporting · Supports: Explicit 1975 origin and contemporary April 2025 local tour corroboration.
- PepsiCo: December 2025 Challenge results →Primary brand release · Supports: Brand-reported 2025 market preference results and tour scope; not independent causal evidence.
Independent educational analysis of external campaigns. These are not SNS client projects, endorsements or claims of involvement. Campaign facts and reported outcomes are attributed to their sources. Explanations, adaptations and test plans are original analysis and hypotheses, not proven causal findings.