The hotel glass problem: What hidden cameras actually caught, and why the chains changed their rules
The glass sits by the bathroom sink, upside down, spotless. It looks like it came out of a dishwasher. Whether it did is a question American television crews have been answering with hidden cameras for the better part of two decades, and the answers are consistent enough to have changed industry policy.
TL;DR
- Hidden cameras were used by American television crews to investigate hotel glass cleaning.
- These investigations spanned nearly two decades.
- The findings were consistent and led to changes in industry policy.
- A spotless, upside-down glass suggested dishwasher cleaning.