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(1) Bacon is a kind of pork belly cooked with pepper, fennel and sweet noodle sauce.
During the Qianlong period of the Qing Dynasty, there was a man named Guo in Chaigoubao Town, Huai 'an who opened a bacon shop. He summed up the previous experience in making bacon and created a unique production process, which doubled the value of Chaigoubao bacon. According to legend, when Eight-Nation Alliance invaded China, Empress Dowager Cixi and Emperor Guangxu fled, passed by Chaigoubao for dinner and enjoyed Chaigoubao bacon. Since then, it has been designated as a tribute by Empress Dowager Cixi.
(2) Wax (XLà is the same as "?" ) Meat refers to the processed products made by curing meat and then baking (or insolating). Bacon has strong antiseptic ability, which can prolong storage time and increase unique flavor, which is the main difference from bacon.
Bacon refers to the processed products made by curing meat and baking it (or exposing it to the sun), which are divided into two categories: smoked and non-smoked.
Bacon is not made in the twelfth lunar month, but preserved. December wax (à) and bacon wax (xρ) are not the same word in ancient Chinese, that is, December wax is a traditional wax, and bacon wax is a simplified word for December wax. Therefore, the reason why bacon is called bacon, as to why people nowadays pronounce là instead of Xι, may really be related to bacon making New Year's Eve in the twelfth lunar month, but the simplified Chinese characters confuse the two words.
References:
(1) Baidu encyclopedia-bacon (2) Baidu encyclopedia-bacon