'Heatswell' on Serious Eats

Video: Heatswell, a Heat-Activated Insulated Coffee Cup

Heatswell by electrical engineer and designer Scott Amron is a biodegradable and recyclable coffee cup wrapped with a heat-activated band that swells to form an insulating collar, thus eliminating the need for cardboard collars and saving on waste and space. The website says the material swells up to one inch, and its texture has a "knitted-on cloth towel feel." If I got my hands on one of these I'd probably stare at it and go, "Whoaaaoooooh, shaaaapes," instead of actually using it to drink a hot beverage. More

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