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GC chromatographic data of the 329 detected volatile metabolites, from lager beers under study, were submitted to HCA (a), in which lager beers were grouped according to the production system: macrobrewer beers (P1–P9) and microbrewer beers (P10–12). The mean of GC chromatographic areas from each chemical family (b) is displayed for each lager beer (orange—microbrewer beers; yellow—macrobrewer beers).
