A few years ago dozens of restaurants in China were caught seasoning their dishes with ground poppy.
The cooks were mixing the powder, containing low doses of opiates – codeine and morphine – into their soups and seafood dishes.
But why? They hoped that their customers would keep coming back for the ‘addictive’ taste. Whether that actually happened, or whether it’s even possible to get people addicted to such small amounts, is still unclear.