Abstract
Abstract In distillation of crude spirits, alcohol content gradually reduces. At varying alcohol contents, trace element types and contents differ in crude spirits. In this study, three samples with 72.7, 65.3 and 55.8 %vol were obtained according to distilled liquor order. Crude spirit samples were analysed every 3 months, with detection of contents lasting for 2.5 years. Primary aldehydes, alcohols and esters were analysed by gas chromatography. Results of this study indicate that higher alcohol content in crude spirits results in higher amounts of aldehydes, alcohol and ester and lower acid content. During storage period of 2.5 years, alcohol contents changed minimally, and varied changes were observed for aldehydes, trends of different acids and esters.
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