• Dirk W Lachenmeier, Kerstin Schoeberl, Fotis Kanteres, Thomas Kuballa, Eva-Maria Sohnius, Jürgen Rehm, and Alcohol Measures for Public Health Research Alliance (AMPHORA).
• Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Karlsruhe, Germany. lachenmeier@web.de
• Addiction. 2011 Mar 1; 106 Suppl 1: 20-30.

AimsSome European countries with high levels of unrecorded alcohol consumption have anomalously high rates of death attributable to liver cirrhosis. Hepatotoxic compounds in illegally produced spirits may be partly responsible. Based on a review of the evidence on the chemical composition and potential harm from unrecorded alcohol, the Alcohol Measures for Public Health Research Alliance (AMPHORA) project's methodology for identifying, analysing and toxicologically evaluating such alcohols is provided.MethodsA computer-assisted literature review concentrated on unrecorded alcohol. Additionally, we refer to our work in the capacity of governmental alcohol control authority and a number of pilot studies.ResultsThe risk-oriented identification of substances resulted in the following compounds probably posing a public health risk in unrecorded alcohol: ethanol, methanol, acetaldehyde, higher alcohols, heavy metals, ethyl carbamate, biologically active flavourings (e.g. coumarin) and diethyl phthalate. Suggestions on a sampling strategy for identifying unrecorded alcohol that may be most prone to contamination include using probable distribution points such as local farmers and flea markets for selling surrogate alcohol (including denatured alcohol) to focusing on lower socio-economic status or alcohol-dependent individuals, and selecting home-produced fruit spirits prone to ethyl carbamate contamination.ConclusionsStandardized guidelines for the chemical and toxicological evaluation of unrecorded alcohol that will be used in a European-wide sampling and are applicable globally are provided. These toxicological guidelines may also be used by alcohol control laboratories for recorded alcohol products, and form a scientific foundation for establishing legislative limits.© 2011 The Authors, Addiction © 2011 Society for the Study of Addiction.

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