#179 1998 · Innocent Drinks · Beverages
Innocent's founders let a festival crowd's empty cups, not a survey, decide whether they should quit their jobs
the problem
No way to test real demand before quitting stable jobs
background
Three Cambridge graduates working in consulting and advertising had spent six months and about £500 on fruit developing smoothie recipes in a rented kitchen. Market research could tell them whether people liked the taste, but not whether strangers would actually hand over money for it in a real purchase moment — and none of the three wanted to resign from stable jobs on the strength of a focus group's opinion.
The standard move for an unproven consumer product was more research: taste panels, surveys, a business plan pitched to investors before quitting anything. All of it measures stated preference — what people say they'd do — which is notoriously unreliable next to what they actually do with their own money and time.
what everyone would do
Run more market research -- taste panels, surveys, a polished business plan pitched to potential investors -- before risking three stable jobs on an unproven product, the standard due-diligence path for testing whether a new consumer product has real demand.
what they saw
A survey only ever measures what people say they'd do, which is cheap to say and notoriously unreliable next to what they actually do with something that costs them anything at all -- even the small effort of correctly sorting a cup into one bin instead of another is a real action, taken in the moment, that a stated opinion in a focus group can never be.
the move
Three friends sold smoothies from a stall at a London jazz festival in the summer of 1998, with a sign asking festival-goers to throw their empty cup into a bin marked 'yes' or 'no' in answer to: should we quit our jobs to do this full-time? They counted bins, not opinions — a real behavioral vote in place of a survey.
why it works
Asking festival-goers to physically choose which bin to throw an already-purchased cup into converts an abstract opinion question into a behavioral one: the customer has already spent money and time on the product, and the bin choice captures what they genuinely felt about it in that moment, with none of the social-desirability bias or hypothetical vagueness that inflates survey answers. Because hundreds of real strangers, not a handful of friends or a paid focus group, made that choice with their own hands, the resulting signal was a large-sample behavioral vote rather than a small-sample stated preference, giving the founders a confidence level no amount of additional market research at that price point could have matched.
the payoff
The 'yes' bin filled; only three cups landed in 'no'. All three resigned the next day. The company they launched, Innocent Drinks, grew into the UK's leading smoothie brand; Coca-Cola bought a roughly 20% stake for £30 million in 2009, raised it to 58% for about £65 million in 2010, and held over 90% by 2013 — sources vary on the exact 2009 percentage (10–20% per Wikipedia, 20% per trade press), so it's given as a range rather than a false-precise figure.
where it breaks
The test only works when the behavior being measured genuinely costs the respondent something and is hard to fake or default into -- a bin vote requiring zero real trade-off (both options equally easy, no product actually tried) collapses back into an opinion poll with extra theater. It also only validates immediate, low-commitment demand at a single moment; a strong bin result doesn't guarantee customers will keep paying full price for repeat purchases once a product moves from a festival stall to normal retail distribution and competition, so it derisks the decision to start, not the entire business model that follows.
what came after
The bin test is now Innocent's own founding myth, told in the company's marketing and repeated in entrepreneurship courses as an early, low-cost example of testing revealed behavior instead of stated intent before betting a career on an unproven product.
references
- [1]Wikipedia — Innocent DrinksWikipedia, 2026en.wikipedia.org
- [2]Gotta Be Marketing — Event Sampling: Innocent Smoothie & The Yes/No BinGotta Be Marketing, 2021gottabemarketing.co.uk
- [3]BeverageDaily — Innocent Drinks has no plans to crack US as Coke swallows new stakeBeverageDaily, 2013beveragedaily.com