Research has been carried out to identify and quantify phenolic and furan compounds (gallic acid, ellagic acid, furfural, 5-methylfurfural, 5-hydroxymethylfurfural, vanillin, syringaldehyde, vanillic acid, syringic acid, synapic aldehyde, coniferyl aldehyde), volatile organic impurities (acetaldehyde, ethyl acetate, methanol, 1-propanol, isobutanol, 2-methylbutanol, 3-methylbutanol), cations (sodium, ammonium, potassium, calcium, magnesium) and anions (chlorides, nitrites, nitrates, sulfates, phosphates, oxalates) in distilled spirits (whiskey, rum, tequila). Some differences were observed in the phenolic profiles of authentic and fake rum samples. The ranges of the cations and anions content in commercial samples of rum, whiskey, tequila have been determined. The data obtained can be used to develop objective criteria for detecting counterfeit products.