Chai recruited a group of volunteers who would go to various markets and stores to check whether food labels showed the production and sell-by dates.
接著，他找了一群義工，每天到各個市場去調查，檢查所有的食品是否標示製造日期與有效期限，每天公布檢查結果，並大力宣導食品未標明清楚的嚴重性。