Ed Kerr (IMAGE) University of Queensland Caption UQ PhD candidate Ed Kerr comparing an enormous 23-litre brewing instrument, with his new 1.5-millilitre test. Credit Ho Vu Usage Restrictions To be only used with this story. Must be credited. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.