“How do you solve a problem like Maria?” the Austrian nuns sing at the beginning of The Sound of Music. Their denominational cousins, the monks at Abbazia di Novacella in what were Austria’s Dolomites until WWI, probably sang a similar song until the 1930s – “How do you solve a problem like well-exposed, high-altitude, mountain vineyards prone to frost?”
Admittedly, not as catchy and perhaps they’d have chanted it instead of sung. But still.
The answer to the monks’ prayers was born in Germany in 1929, when a grape researcher named August Herold made his first plantable cross of Riesling and Trollinger, the grape called Schiava in Alto Adige. Schiava gave the new grape strong resistance to late season frost, while Riesling promised fine acidity, the ability to express minerality, and plenty of perfume. August named his new grape “Kerner” after a local German poet who once penned that classic, “Wohlauf, noch getrunken” which translates as “Arise, still drunk.”
In post-WWII Germany, plantings of Kerner, Müller-Thurgau, Bacchus and other “new breeds” spread rapidly at the expense of more finicky, lower yielding Riesling as the wine industry struggled to recover from war damage and devastation. At its peak, Kerner was actually Germany’s third-most planted grape! But it didn’t make very interesting wines at the relatively low altitudes where Germans planted it (and, especially, at the mind-bending yields they sought), so as the industry and Germany recovered in the 1980s, 1990s and beyond, Kerner plantings shrank fast.
Kerner Climbs The Mountains
The monks of Abbazia di Novacella control the third oldest continuously operating winery in Europe – dating from the 12th Century – so they’re not exactly prone to jumping on fads. Over the centuries, they and their partner growers working in the craggy vineyards of Alto Adige’s Dolomite had done a pretty fine job of mapping grape to vineyard based on exposure, soil type, slope and altitude.
Red grapes like Lagrein, Schiava, and Pinot Nero claimed the lowest vineyards, those at around 1,000 feet altitude ringing Lake Kaltern near Bolzano (45 minutes south of the winery). Near the winery in Brixen (or Bressanone if you prefer the Italian), Pinot Grigio climbed up the slopes from 1,200 feet and Gewürztraminer and other whites claimed full-sun South and Southwest facing sites at up to 2,000 feet.
But at just short of a half-mile up, none of these grapes would consistently ripen – or at least succeed at economic yields in the face of bitter cold spring nights and regular frosts.
So, at some point in the 1970s, the monks and their winegrowing team decided to give frost-resistant Kerner a try. While the first wines may not have been very successful, soon the combination of steep vineyards, super-dense planting, plenty of daytime sunshine and crisp, cold, nights proved to be exactly what Kerner needed to shine. So much so that in 1993, Italy recognized high-altitude Alto Adige Kerner with its own DOC status.
Kerner vs. Praepositus Kerner
Today, the monks’ winemaking team produce two Kerners. The “Classic” Kerner is delicious and is, as the folks at the winery told us last March, a perfect aperitivo wine – ideal for sipping on during the hour after work and before dinner. Light, fresh, refreshing fun.
Then there’s the Praepositus Kerner. It’s made the exact same way as the Classic Kerner: harvested by hand, destemmed, crushed and fermented cool in tank and then bottled after six months on the fine lees. But it’s a completely different wine because it’s made from grapes from two of the world’s finest Kerner vineyards.
The vineyards sit at 2,100 – 2,300 feet altitude and the vines grow on hand-built terraces running down the 25-40% gradient mountain slopes. These super-steep slopes allow the densely-planted vines (about 2,500 plants per acre) to slowly ripen to perfection. Although both the Classic and Praepositus Kerners are harvested about the same time (in early October) the “regular” wine usually comes in at 13.5-13.7% alcohol. Praepositus reaches 14.3% in 2016.
The extra alcohol translates to better body and more flavor – because only when it’s fully ripe does Kerner really come into its own with explosive aromatics and wildly complex flavors. And the cold nights and deep minerality balance the richness of texture perfectly, giving the wine compelling lift, definition and refreshing crispness.
If you’ve had other Kerner wines before, then know that this one is better. And if you’ve never tried one, please, don’t miss this!