Advertisement Scientists have taken âmicrobrewingâ to a whole new level, developing a method to test brewing techniques using a single grain of barley in a 1.5-millilitre vial. UQ PhD student and self-described âbeer scientistâ Edward Kerr came up with the method out of frustration, after being asked to redo some recent brewing experiments that he was trying to get published as a scientific paper. UQ PhD candidate Edward Kerr with the existing brewing vessel and the new micro-brewing vial. âThe people reviewing the paper asked for some extra experiments to clarify som...