Analysis Yields Clues to Chemical Composition, Natural Aging Of 100-Year-Old Beer
Stashed away and long-forgotten, a trio of century-old bottled beers recently discovered in the Czech Republic could help scientists better understand early 20th-century brewing practices, as well as the chemical changes that occur in beer over long periods of time. A report on the well-preserved lagers appears in ACS’ Journal of Agricultural and Food Chemistry.
Uncovered in 2015 during the reconstruction of an old brewery, the three lager beers apparently were produced during the World War I era and stored in a large cold cellar at the brewery where they remained to gather dust. The beers were bottled in dark glass and well sealed. Taking advantage of this unique discovery, Jana Olšovská and colleagues sought to produce detailed chemical profiles of these 100-year-old beers and determine the long-term effects of lager beer aging.
Recently discovered World War I era beer could help scientists better understand the aging processes involved in brewing
Initial sensory analyses found that the beers ranged from intensely sulfuric to sour, and had off-flavors that ranged from fecal to fruity. Using high performance liquid chromatography and other techniques, the researchers compared the beers’ features to those of modern day brews.
The authors acknowledge funding from the Ministry of Agriculture of the Czech Republic and Ministry of Education Youth and Sports of the Czech Republic.
Citation: “Analysis of 100-Years-Old Beer Originated from the Czech Republic“
Journal of Agricultural & Food Chemistry
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