Frequently there is a plug of wax on top of the cork. Why? The wines are excellent young. Could there be any benefit in aging them?
Answer From Expert Roger Bohmrich MW
It's not entirely clear from your comments if you are referring to a particular wine or producer, so I'll base my answer on a few general assumptions. Certainly, Alsace Gewurztraminer is almost always immediately enjoyable and does not demand bottle age, since this type of wine is inherently perfumed, suave, and contains low to moderate acidity. There are, on the other hand, examples from particular sites and late harvest renditions (Vendange Tardive and Selection de Grains Nobles) which certainly can be cellared and gain in subtlety and finesse with time. As to the use of wax on the bottle, this tends to be an aesthetic choice that is meant to convey an artisanal approach by the maker. This description fits Alsace today, since the region is home to many growers involved in organic and biodynamic viticulture. Is the wax you're referring to just a "plug" or does it cover the top of the bottle?
