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the claim
Restaurants in China commonly use recycled gutter oil.
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
3 sources for · 0 against

Evidence and academic literature document that the illegal production and use of gutter oil has been a documented food safety concern and form of food fraud in China.

Evidence for · 3
Food safety governance in China: From supervision to coregulation.
2019 · cited by 37
This study notes that China's food safety governance system faces ongoing challenges, including the use of substandard materials and adulterated products.
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The analysis

The retrieved literature (especially paper [7] and references to food fraud in [1] and [6]) directly supports the claim that gutter oil has been a notable food safety issue in China. There are no papers refuting the premise that restaurants or illicit actors have engaged in this practice.

More for · 2
Food fraud and the perceived integrity of European food imports into China.
2018 · cited by 16
This paper highlights that persistent incidents of food fraud in China have led to low levels of consumer trust in the safety of domestically produced food.
Gutter oil: an overview of Chinese food safety issues and policies.
2017 · cited by 12
This commentary explicitly identifies gutter oil (swill-cooked oil) as one of the top concerns in Chinese food safety and summarizes key incidents and policies surrounding it.
The paper trail · every fact has a biography
first checked04 Aug 2026
judged → SUPPORTED · 8504 Aug 2026
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