The next time you bite into your favourite donkey burger beware - it might actually be horse, pig or even mule meat.
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That is the warning from authorities in China after investigation revealed that some butchers in a city famed for its donkey burgers had engaged in a nefarious plot to substitute donkey with cheaper meats.
Restaurants all over China, but mainly in Beijing, bought the fake donkey meat. Underlining the severity of the problem, authorities in Hejian - unofficial home of the donkey burger - called an emergency meeting on Monday (Jan 8) and launched an investigation.
Officials there vowed to punish those producing the dodgy donkey meat, which was also transported beyond Beijing to other cities around China.
Undercover reporters exposed the ruse, filming a dingy workshop in Hejian where red meat was dumped in buckets and lay on wooden slabs.
Meat in a donkey burger is typically braised, chopped up into small pieces and then wrapped in cooked bread, and is particularly popular in northern China.
In fact, it is so popular that it has spawned a well-known saying: "In heaven there is dragon meat, on Earth there is donkey meat".