I admit, that was just a generalized simplification to explain why the quality (well, not quality per se, just drinkability) of AA Geurztraminers has been on a decline. I hope people donât now think Alto Adige is just a valley-shaped sauna in the Southern Alps! (Although my friend who visits Italy several times a year said that in 2018 and 2019, while visiting several wineries, the temperatures were at times rather infernal there!
Anyways, what weâve discussed (and what he has discussed with the producers), the big problem is that many producers have reserved many of their (traditionally) best vineyards for Gewurztraminer, which tends to require more warmth and longer growing periods to achieve full ripeness. These vineyards have been those that have the best sun exposure and just enough airflow to keep the grapes dry without cooling the site too much - capable of letting grapes in the past achieve full ripeness even in cooler vintages. Since Alto Adige is quite efficiently protected by clouds, as the Dolomites / Alps keeps the region quite efficiently in rain shadow (basically the same phenomenon as in Alsace), the region is very sunny, and due to climate change, the average temperatures have climbed quite noticeably in the past 10-15 years, but the winemaking hasnât really kept up with the pace - especially with the wines from the âbestâ vineyards.
Even Vorberg of today is a very different wine from those made in the 1990âs. Itâs a substantial and quite tropical wine, whereas it used to be noticeably lighter in body in the past. However, Vorberg continues to be as impressive as ever, as its concentration and intensity carries the weightier body and higher alcohol with remarkable grace. The same applies to many other Pinot Biancos, but Gewurztraminers and Pinot Grigios havenât fared equally well (although canât remember seeing much Pinot Grigio from top vineyards - PG seems to have been a workhorse variety there, whereas PB and Gewurz have been considered more esteemed varieties.
These traditionally best vineyards used to be located at higher altitudes, where the ground drainage is better and where the sun exposure was best, while the valley floor was cooler and wetter. This friend of mine told how many producers are replanting their lower-yielding vineyards since they really donât have to worry so much about drainage, whereas those lower vineyards tend to have much better temperatures regarding quality-oriented farming: the warmer air rises up, making those traditionally better vineyards too hot for high-quality grapes, whereas the cooler air gets pushed down, so that now those vineyards that are situated at lower parts of slopes are actually better suited for making fine wine. Sure, one could try to plant vineyards at even higher altitudes where the air would be cooler, but in most parts the vineyards are planted as high as it is possible to farm reasonably.
And these also should not be taken as generalizations that apply to all AA! There certainly are still some exceptional vineyards that produce remarkable wines at high altitudes and most lower-altitude vineyards are not suitable for making world-class wines. Itâs just an interesting glimpse of how the balance has shifted there in such a short period of time.