<unk>  is an acceptable raw ingredient for products that are not for human consumption, such as soap, rubber, bio-fuel, and cosmetics.<unk>  has been shown to be toxic causing diarrhea and abdominal pain. There are also reports that long-term consumption of the<unk>  can lead to stomach and liver cancer. Testing of some samples of<unk>  has revealed traces of polycyclic aromatic hydrocarbons (PAH): dangerous organic pollutants capable of causing cancer with long-term consumption. There is also potential for<unk>  to contain aflatoxins, highly carcinogenic compounds produced by certain molds. Zeng Jing of the Guangdong Armed Police Hospital said of<unk> : "Animal and vegetable fat in refined waste<unk>  will undergo rancidity, oxidation and decomposition after contamination. It will cause indigestion, insomnia, liver discomfort and other symptoms." Due to rumours and the fear of Chinese customers of restaurants using<unk>  in their cooking, it has been reported that some people in China have resorted to bringing their own cooking<unk>  with them from home into restaurants and instructing chefs to use their home-brought<unk>  in their kitchen when preparing their food instead of the restaurant's own cooking<unk> .
Gutter oil
Emu oil
Yu Yee oil
Lavender oil
Baby oil
Godbold's Vegetable Balsam
Phospho soda
Soybean oil