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What is the golden eye in the chef's cooking?
A fire hole is a burning hole in a gas stove.

The earliest cooking stoves in the history of China can be traced back to the Qin Dynasty, and the western stoves only appeared in 1735 [1]. Before gas stoves appeared, people used coal and wood as fuel utensils until 1826 [2] the first gas stove was born, but it was not used for cooking at that time. Gas cookers really used for cooking were exhibited at the London World Expo in 185 1 [1], but they were only produced in batches at that time, because the laying technology of gas pipes was not mature at that time, and not every household could be equipped with gas cookers, so gas cookers could not be produced commercially in large quantities. It was not until A.D. 1880 that gas stoves began to be commercialized. But at the same time, the first generation of induction cookers was exhibited at 1893 [1] Chicago World Expo, and the market of gas stoves began to be eroded by induction cookers. Today, gas stoves and induction cookers are common cookware used by all people.