Ajinomoto answered gyoza-stick claims by publishing 3,520 scanned pans

Ajinomoto Gyoza is the best-selling frozen gyoza in Japan, a category where kitchen success is everything. In 2023 a customer posted on X that the frozen gyoza had stuck to and burned in the pan, a viral 'your ads lie' complaint about the brand's flagship product. For a food the customer finishes cooking at home, reputation rests entirely on whether it behaves in the pan, so a truthful-sounding failure post could not be brushed off.

The obvious response was messaging: issue a defensive apology and a counter-statement promising the recipe works if cooked correctly. That fails because the complaint sounds like a genuine defect — a PR denial just rebounds as 'they're covering it up'. Ajinomoto needed a response that was more credible than a claim.

Ajinomoto apologised, then asked customers with the same problem to mail in the pans where the gyoza burned. It collected 3,520 frying pans from across the country, 3D-scanned them with industrial equipment, and published every pan as a full 3D model in an open digital archive on its website — a transparent 'research in progress' report the public could rotate and inspect. The resulting pan data fed R&D: in February 2024 Ajinomoto launched a renewed gyoza engineered to stick less and cook with crispy 'wings' in any pan.

Ajinomoto asked complainers to mail in burned pans, 3D-scanned 3,520, and published them openly, turning accusations into R&D data that proved the fix.

Asking accusers to mail pans turned detractors into contributors, shifting the story from brand vs customer to joint investigation.

Publishing 3,520 real 3D scans made the process transparent, so the evidence was believed without a rebuttal.

The collected data exposed true cooking variables, guiding an R&D fix that actually improved the product.

The improved gyoza carried proof of origin from the public dataset, rebuilding trust more durably than any counter-claim.

When customers claim a defect, turn the complaint into data: collect the failing specimens, publish the measurements openly, and rebuild the product from what they show.

The study fed a real fix: independent press confirmed the less-sticky gyoza launched Feb 2024; sales/award claims are self-reported. What began as a single complaint became a public R&D operation: the company treated failure data as an open asset rather than a liability, publishing the physical specimens of criticism and rebuilding the flagship product from them — later finishing as a PR Grand Prix winner at ADFEST 2024.