Gluten-Free Beer via Hydrodynamic Cavitation Assisted Brewing of Barley Malts

We provide evidence that novel brewing technology based on controlled hydrodynamic cavitation greatly reduces gluten concentration in wort and finished beer. We advance the hypothesis that the degradation of proline, the most recalcitrant among gluten constituents, leads to gluten concentration reduction in the unfermented as well as in the fermenting wort and later during maturation. These findings are significant as the new cavitation-assisted technology could provide coeliac patients and gluten-intolerant people with gluten-free beer of high quality, offering an alternative to existing methods to lower the gluten concentration, which are detrimental to flavor and taste.