Taste peculiarity of certain American vines and the wine made from it, which according to European taste is mostly to be understood negatively (amazingly, this tone is perceived as pleasant in Japan). Other names for Foxton are fox taste, fox taste, cat safe, skunk tone (skunk tone) and bug taste. The very often used term Hybridton is actually misleading, since not all hybrids have that tone. The name Foxton was chosen based on the similarity of the scent around a burrow or the smell of fox urine (cat urine), wet fox fur and animal faeces. This is particularly pronounced in the species Vitis labrusca (also fox or strawberry vine) and a little less for the species Vitis rotundifolia or their descendants and crossing products.
But there are other American vine species that have the aroma, albeit to a lesser extent. The substance 2-methylantranilic acid (anthranilic acid methyl ester) was identified as the main cause of the Foxton in 1921. However, it is not solely responsible for this, since in 1993 2-aminoacetophenone was identified as another cause. The second is also the cause of the wine error UTA (atypical age tone). The content of these compounds increases continuously in the berries as the grapes ripen.
Always associated with this penetrating wine flaw, the sensually much more pleasant, but also alien wine strawberry aroma / tone . The wine has a typical taste of strawberries (raspberries, hawthorn). 2,5-Dimethyl-4-hydroxy-2,3-dihydrofuran-3-one (furaneol) was identified as the causative substance. While 2-methylantranilic acid, the Foxton, predominates by far in the American vines and their immediate descendants, further backcrossing occurs Europeans Vines this false tone more and more in the background and the strawberry aroma is more noticeable. The grape varieties are an example of this interplay Castor and Pollux that have a clear strawberry note, but only a faint Foxton.
With more precise analysis methods, all three above-mentioned substances could be detected in traces side by side, even in pure European varieties, but due to the low concentration without sensory influence. Although Foxton and strawberry aroma always appear together in different intensities in grapes according to the current state of knowledge, they are regarded as two separate ones wine faults, You should therefore never subsume them under Foxton, but this is the case in most specialist publications. Wines or wine-like drinks from Labruscasorten are Americano (Switzerland), fragolino (Italy) and Uhudler (Austria).
Source: Detect Wine Errors / Edmund Lemperle (Ulmer Verlag)