> In Asia, there are street merchants who will throw grains into an iron vessel which is then closed and heated to create a similar pressure situation. When the

> In Asia, there are street merchants who will throw grains into an iron vessel which is then closed and heated to create a similar pressure situation. When they release the pressure, there is an audible boom and the results is puffed grains. Video time-stamped before the boom: https://youtu.be/ZyJoqS__7O0?t=158 https://youtu.be/ZyJoqS__7O0?t=158