The antioxidant activities (AA) of commercial sherry brandies (Solera, Solera Reserva and Solera GranReserva) and samples obtained from an experimental ageing system were measured. In the dynamic ageing system, the data show that the casks containing the youngest distillate become exhausted over time.For experimental and commercial brandies, antioxidant activity and polyphenolic content both increasewith increasing age, so the correlation between the two parameters was analysed. It is concluded thatthere is a significant relationship between them; however, it seems that some non-phenolic compoundscould also contribute to the antioxidant activity. The results revealed certain differences between commercial and experimental sherry brandies, and these differences could be due to the addition of caramelcolouring. Several other commercial aged distillates of various different geographical origins (Cognacs,Armagnacs, and Spanish, French and South African brandies) were studied, and their antioxidant powerwas compared with that of the three categories of Brandy de Jerez. It was found that Solera Gran Reservasherry brandies show the highest antioxidant activity of all the products considered.