Unilever Laundry Detergent Nozzle - Case Study | Video
Looking at problems from a different angle ~ 3 mins

By Stefani Markov
Authors

Stefani Markov
Lean Six Sigma Black Belt, PMP, and MOS: Expert(Microsoft)
Founder & CEO

Orlin Markov
Lean Six Sigma Black Belt, PMP
1/1/26, 7:00 AM
This Unilever nozzle story stays with me, not because it’s about engineering, but because it’s about how we decide to solve problems.
They did what most organisations do first: bring in the best experts, apply the best theory, redesign from first principles and it still didn’t work.
What changed everything wasn’t a better equation, but a different question.
Instead of asking “What should work?”, they asked “What actually works?” - and handed the problem to people who think in variation, testing, and selection.
Why I keep coming back to is this is all the unanswered questions: How did Unilever reach the point where they said, “Let’s give this engineering problem to the biologists”? How many failed redesigns did it take before that decision was made?
That moment, the shift from conventional thinking to cross-disciplinary experimentation, is fascinating to me.
If you know more about what triggered it, I’d genuinely love to hear it.
#ProblemSolving #ProcessThinking #LearningFromFailure
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