The Wonderbag: How Cooking with Recycled Polystyrene Can Avert Disasters - Core77 - 1 views
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valerie taylor on 03 Jun 13" Wonderbag. By filling a polycotton bag with recycled polystyrene beads, the duo have created an object that can be safely draped around a pot that has just been brought to boil. The Wonderbag then keeps the pot and its contents hot for hours, without the original heating source. "