Rice Bought on Mercari Turns Discolored — Users Warn “Never Buy Food on Flea-Market Apps”

Background and Points of Debate

Flea-market apps like Mercari run on person-to-person (C2C) transactions, which is a key difference from online retailers or physical stores: sellers aren’t required to hold a food sanitation permit or verify their identity. Rising rice prices in recent years have pushed more people to hunt for deals on flea-market apps, but the risk of buying rice with an unknown milling date or storage history has long been flagged as a concern. The thread split between those who see buying food through person-to-person deals as inherently risky, and those who argued that sealed, brand-name items like canned goods or dry foods are fine — showing that where people draw the line varies from person to person. The phrase “no complaints, no returns,” commonly used in listings, tends to be cited by sellers as grounds for refusing return requests, but it doesn’t actually guarantee the food is safe. What’s easy to overlook when buying food on a flea-market app is that there’s no quality assurance from the platform itself — it’s strictly a deal between individuals.