The solution
Frying chips is water-hungry, and in India water stress made the process a business risk as well as an environmental one. Lay's found its answer inside the potato itself: about 80% of the water naturally in potatoes evaporates during frying and is typically wasted.
The company built a process to reclaim that vapor, condense and purify it, and reuse it as manufacturing water — "the potato uses its own water to create water." The approach supports water positivity at its plants in West Bengal (Kolkata) and Uttar Pradesh (Kosi).
On World Environment Day 2024, Lay's launched the animated film "Drops of Joy" — "potatoes are the true superheroes" — turning an engineering fix into a brand story. It was shortlisted at Cannes Lions 2024 for Responsible Consumption and Production and again in Environmental Innovation at Spikes Asia 2025.
What it achieved
The potato already carries the water; reclaim it
Why it worked
It turns a wasted process byproduct into the input the process needs, cutting water use at the source.
The engineering is the campaign: a real, measurable practice instead of a green claim.
It aligns with PepsiCo's pledge to become net water positive by 2030.
What can be applied
When an input is scarce, look inside your process for the resource you are already throwing away — the byproduct can become the supply.
Aftermath
PepsiCo India continues to frame Drops of Joy within its pep+ sustainability agenda and its net-water-positive-by-2030 commitment; the campaign earned shortlists at Cannes Lions 2024 and Spikes Asia 2025.
FOLLOW THE EVIDENCE
The sources
- Spikes Asia reveals its Spikes Innovation 2025 shortlist adobomagazine.com
- New Lay's ad is all about enabling water positivity brandequity.economictimes.indiatimes.com
- Lay's rolls out 'Drops of Joy' film on World Environment Day storyboard18.com