Orange wine even elevates the uncontrolled fermentation process to a principle of style. The must from white grapes is fermented with the skins, like red wine, and often left to rest for a long time, sometimes months. Contact with the air is explicitly desired during vinification; though filtration, sulphurisation and any other kind of intervention is of course ruled out.
This results in bronze to orange coloured wines with lots of tannins, oxidation notes and sometimes vegetable soup or sauerkraut aromas. Most of them are undoubtedly complex. But “we have been striving for cleaner wines for thirty years and now this,” says organic wine merchant Peter Riegel half jokingly.
On the other hand, many orange winemakers are enjoying experimentation. Amphorae and earthenware are used as fermenting vessels based on the model of Georgian kvevris. Concrete eggs are also popular due to their micro-oxidative effect, and because it is assumed that swirling inside prevents the suspended sediment from sinking. “We have not been able to ascertain this, though,” dismisses Dr Michael Zänglein from the Bavarian State Office for Viticulture and Horticulture, who has traced the flow in series of measurements.
The wines are in demand despite or particularly due to their eccentric style. The process is achieving good results in particular with bouquet varieties and in cuvées. Typical flavours such as hyacinths in Muscat or rose petals in Gewürztraminer produce a stimulating tension against the vegetal and oxidative notes. It is not uncommon for wine tastings of natural and orange wines to be overbooked.
Some winegrowers, on the other hand, show slight reservations. Those who have struggled for many years to find a clear expression of the fruit cannot always easily become accustomed to the lush secondary aromas.
It is often said behind closed doors that: “Our customers kept asking for orange wine. So in the end we made it.” But here too, however, skepticism seems to be giving way. At the upcoming ProWein, the proportion of organic winegrowers will be greater than ever before.
Matthias Stelzig