De Clippeleer, Jessika, Guido Aerts, and Luc De Cooman. “Beer’s Bitter Compounds – A Detailed Review on Iso-α-Acids: Current Knowledge of the Mechanisms for Their Formation and Degradation”. BrewingScience 67, no. 11/12 (December 19, 2014): 167–182. Accessed June 17, 2026. https://brewingscience.de/index.php/brewingscience/article/view/377.