Factors influencing beer head retention
Foam stability | Various physical phenomena can be observed in beer foam. Foam membrane strength is an important factor influencing head retention. When comparing various foam analysis methods (Sigma, NIBEM and FCT developed by us), it was found that NIBEM and FCT were more sensitive in determining foam membrane strength than Sigma. In this article, the importance of the composition of hop bitter acids for foam membrane strength and visual foam stability is described. It summarises some research results which have already been published in BrewingScience, 2021, issue 6: November/December.
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