Their fries are hand cut in the back of the store throughout the day, soaked in water then double-cooked in high-quality peanut oil.

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To prevent leaching and rupturing, breast implants have become increasingly firm, while trials with peanut oil and soy-bean oil have failed to produce a satisfactory alternative.

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There may be problems recognising well known ingredients - for instance, peanut oil goes by the name of Arachis hypogaea on cosmetic labels.

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Chinese consumers burn about three million tons of peanut oil, considered a high-end cooking oil, exceeding the country's output of 2.3 million tons.

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Located on the campus of the University of Pittsburgh, "The Dirty O" has a reputation for decadent spuds: hand-cut and peeled Idaho potatoes, twice fried in peanut oil, and served golden and crunchy on a cafeteria tray.

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