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Mar 2, 2014 12:04 PM



"It acts as a pressure cooker," says David Jackson, a food scientist at the University of Nebraska. He says the durable kernel keeps water and starch sealed inside. When a kernel is heated, the starch liquefies and the pressure builds until the seed coat breaks.

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  1. Good to know. Thanks for the posting. Does that mean that one can pop popcorn without using any oil? Never tried it but will.

    3 Replies
    1. re: singlemalt

      Yeah, it can be done, at least in the microwave. Hard to get the salt to stick, however.

      1. re: singlemalt

        i do it all the time in a plain (no ink) double thickness of brown paper bags.

        normally, about halfway through the popping process, i "harvest" those kernals that have already popped so that they won't overcook during the second half of the process.

        1. re: singlemalt

          I used to have a popcorn popper that operated on heated air with no oil.