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Gutter oil
Gutter oil (Chinese: 地沟油; pinyin: dìgōu yóu, or 餿水油; sōushuǐ yóu) is a term used in mainland China, Hong Kong, Macau and Taiwan to describe illicit cooking oil which has been recycled from waste oil collected from sources such as restaurant fryers, grease traps, slaughterhouse waste and sewage from sewer drains.[1][2]
Contents
DescriptionEdit
Reprocessing of used cooking oil is often very rudimentary; techniques include filtration, boiling, refining, and the removal of some adulterants.[3] It is then packaged and resold as a cheaper alternative to normal cooking oil. Another version of gutter oil uses discarded animal parts, animal fat and skins, internal organs, and expired or otherwise low-quality meat, which is then cooked in large vats in order to extract the oil. Used kitchen oil can be purchased for between $859 and $937 per ton, while the cleaned and refined product can sell for $1,560 per tonne.[4] Thus there is great economic incentive to produce and sell gutter oil.
It is estimated that up to one in every ten lower-market restaurant meals consumed in China is prepared with gutter oil.[5] This high prevalence is due to what Feng Ping of the China Meat Research Center has made clear: "The illegal oil shows no difference in appearance and indicators after refining and purification because the law breakers are skillful at coping with the established standards."[6]
https://en.m.wikipedia.org/wiki/Gutter_oil
Gutter oil (Chinese: 地沟油; pinyin: dìgōu yóu, or 餿水油; sōushuǐ yóu) is a term used in mainland China, Hong Kong, Macau and Taiwan to describe illicit cooking oil which has been recycled from waste oil collected from sources such as restaurant fryers, grease traps, slaughterhouse waste and sewage from sewer drains.[1][2]
Contents
DescriptionEdit
Reprocessing of used cooking oil is often very rudimentary; techniques include filtration, boiling, refining, and the removal of some adulterants.[3] It is then packaged and resold as a cheaper alternative to normal cooking oil. Another version of gutter oil uses discarded animal parts, animal fat and skins, internal organs, and expired or otherwise low-quality meat, which is then cooked in large vats in order to extract the oil. Used kitchen oil can be purchased for between $859 and $937 per ton, while the cleaned and refined product can sell for $1,560 per tonne.[4] Thus there is great economic incentive to produce and sell gutter oil.
It is estimated that up to one in every ten lower-market restaurant meals consumed in China is prepared with gutter oil.[5] This high prevalence is due to what Feng Ping of the China Meat Research Center has made clear: "The illegal oil shows no difference in appearance and indicators after refining and purification because the law breakers are skillful at coping with the established standards."[6]
https://en.m.wikipedia.org/wiki/Gutter_oil