Answers with regards to the age-old debate of whether beer tastes better in a can or bottle have been inconclusive. Food scientists from ACS Food Science & Technology tried to address this dilemma by stating that it depends on the type of beer. For instance, amber ale stays fresher in bottles while container choice makes little difference in India Pale Ale’s (IPA) stability.
For a month, canned and bottled amber ale and IPA were chilled. For another five months, the beers were then kept at a room temperature mimicking the typical storage conditions. The team analyzes the metabolites of newly opened containers every two weeks. They observed that the concentration of some metabolites, such as amino acids and esters, in amber ale significantly differed depending on its packaging type.
Understanding how these changes affect flavor helps brewers in making well-informed decisions about the packing type best suited for a particular type of beer.