Many parts of China are actually known for their fine cuisine, but its food industry has taken a lot of heat lately for its troubling lack of standards (and for good reason).
In 2012 a man purchased shelled walnuts in Zhengzhou city, China only to find broken concrete pieces inside. The concrete was wrapped in paper to prevent it from making a suspicious noise when the nut was shaken. The vendor who sold the walnuts was trying to gain more profit by selling these fake nuts that were much heavier than the real thing. More photos are shown at this Chinese news site.
Because pork is less expensive in China, some restaurants have sold it instead of beef – but not before they performed some chemistry on it. What they use are a beef extract and a glazing agent to “marinate” the meat in for 90 minutes. Doctors have advised people to stay away from this fake product as its long-term use may cause“slow poisoning, deformity, and even cancer.”