Hogwash oil is refined, inedible waste oil - of poor quality and unsanitary.

地沟油是从废弃物中提炼的劣质而且不卫生的不可食用的油。

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Hogwash fat containing large quantity of animal and vegetable oil adds difficulty to be treated with, hogwash fat also causes serious environmental pollution and resource waste by sluiced directly.

餐饮泔水油中含大量的动植物油脂增加了污水处理的难度，泔水油的直接排放也造成了严重的环境污染及资源浪费。

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