Notpla is an edible material made from seaweed and plants that can encapsulate drinking water other edible materials, eliminating the need for plastic packaging.
From Fast Company:
The designers used a technique from molecular gastronomy to create the package—if you dip a sphere of ice in a mixture of calcium chloride and brown algae extract, an edible membrane forms around the ice, holding everything in place as the ice melts back to room temperature. A small version of the package is designed to break open inside your mouth. "It's a bit like a cherry tomato," says Paslier. "You put it in your cheek and bite on it. It explodes, so it's quite a surprising experience." The startup partnered with the Scottish whisky brand Glenlivet last year to make a "glassless cocktail" capsule that customers can imbibe along with whisky. The seaweed coating, which is tasteless, can either be eaten or composted.