Malva nut in water (IMAGE)

University of Chicago

Malva nut in water

Caption

Malva nuts, known in Chinese as the sore throat remedy Pangdahai, expand about eight times in volume and 20 times by weight in water. For comparison, rice swells by about three times by weight when cooked and chia seeds swell to 10 times their weight.

Credit

University of Chicago / Chuanwang Yang

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