 This study examined the formation of two aminoacetophanone, two AAP, a compound responsible for atypical aging, ATA, in white wines, and its relationship to various factors including varietal differences, antioxidant levels, and transition metal ions. The results suggest that Muscat and Riesling wines have higher concentrations of two AAP compared to Chardonnay and other regional varieties. Additionally, the presence of transition metals can influence the formation of two AAP by either promoting or limiting its production. Overall, this study provides valuable insight into the formation of two AAP in white wines and suggests potential strategies for reducing its occurrence. This article was authored by Tatyana Radovenovic-Vukhujlovic, Christian Philip, Philip Edder, and others.