Hot rice from cold water

A group of researchers in Japan has developed a new type of non-perishable food pack, called “Hotto! Raisu” (Hot Rice), that is capable of producing hot rice with the addition of cold water.

By subjecting rice to 4,000 times normal atmospheric pressure, the developers were able to preserve rice for long periods in a soft form that holds moisture. When water is poured over an exothermic agent in the pack, steam warms the rice contained within, and after about 15 minutes, the dish is piping hot.

More here.