The non-alcoholic beer category has emerged as a bright spot in a rather lackluster market, having outperformed the alcoholic beer segment for the last four years[1]. There are several methods for removing alcohol: physical filtration (mainly used by larger breweries); the use of special yeasts that convert the sugar into flavor components but not ethanol; and cold or short contact fermentation, which restricts alcohol formation.
The main challenge with the third technique is the stability of the beer, which results in a much shorter shelf-life than alcoholic beer. “There are a number of reactions that cause the beer to deteriorate over time,” says Turlej. “Mainly it is proteins in the beer reacting with some other ingredients. The challenge is that some of the proteins are needed for flavor and foaming, so it is a case of removing only the highly reactive proteins.” To address this, Brenntag Specialties Food & Nutrition offers solutions like tannic acid, specialized enzymes, and protein stabilizers. "We work closely with brewers to recommend the most effective solution based on their specific production setup," adds Andrzej.