Blaufränkisch

The story

Blaufränkisch's name is a medieval quality claim: German-speaking growers sorted grapes into noble 'Fränkisch' (believed introduced by Charlemagne) and inferior, high-yielding 'Heunisch' — a distinction Hildegard of Bingen already wrote about in the 12th century. DNA punctured the boast: one parent is Weißer Heunisch, alias Gouais Blanc — the 'Hunnic' grape itself — making Blaufränkisch a half-sibling of Chardonnay, Riesling, Gamay and Furmint. The other parent is a live scientific dispute: Maul et al. (2016, Vitis 55(3), Julius Kühn-Institut) name Blaue Zimmettraube; 'Mann/Regner' (2022, reported in Der Winzer) name the near-extinct Styrian Sbulzina. Two named studies, no resolution — and VIVC's passport (No. 1459) records the country of origin as Slovenia. The paper trail is unusually precise: in 1777 ampelographer Sebastian Helbling praises the 'Schwarze Fränkische' of Lower Austria; in 1862 the name 'Blaufränkisch' first appears at a Vienna exhibition; in 1875 it is standardized at Colmar; and on 4 November 1866 cuttings from Bad Vöslau reach Württemberg, founding Germany's 'Lemberger' tradition. At Klosterneuburg it became a parent itself: St. Laurent × Blaufränkisch (1922 — entry No. 71 in the institute's cultivation records) gave Zweigelt, now Austria's most-planted red, and a 1923 cross with Blauer Portugieser gave Blauburger. Hungary, meanwhile, grows more of it than Austria does — as Kékfrankos, the mandated backbone of Egri Bikavér, 'Bull's Blood'.

Insider story

The Zweigelt question, documented from the archive out: Fritz Zweigelt joined the NSDAP in May 1933 while the party was still banned in Austria, ran the Klosterneuburg wine school from March 1938 (full director only in 1943), and in 1941 his institute received 40 hectares of vineyards seized from the neighbouring Augustinian monastery after the Gestapo dissolved it. Arrested on 30 June 1945, he was investigated for treason, warmongering and denunciation — the prosecutor's 11 September 1946 submission found 'no specific evidence of denunciation', and President Karl Renner halted proceedings in 1948, though compensation for his six months in custody was denied because the suspicion 'did not appear entirely dispelled'. His documented 1938 campaign of compiling 'detrimental information' on four colleagues stands in the record regardless. And the grape was never named to honour him: Lenz Moser proposed 'Zweigelt' in 1956 simply because 'St. Laurent × Blaufränkisch hybrid' was too long to keep writing; the name became official only in 1975, after his death. Since 1978 any producer may legally label it 'Rotburger' instead — the 2018 'Abgezweigelt' campaign (some growers selling it as 'Blauer Montag') has produced no official rename. Germany already ran the precedent: 'Sämling 88' was named 'Dr. Wagner-Rebe' for a Nazi functionary in 1936 and quietly became 'Scheurebe' after breeder Georg Scheu died in 1948.

Technical deep dive

A vine of contradictions: early budding (spring-frost risk) yet late ripening (October harvest), so it demands warm, sheltered sites — Austria's ÖWM calls it 'very demanding'. Prone to coulure in cool flowering weather; susceptible to powdery and downy mildew (Italian sources on Friuli's 'Franconia' describe a more manageable profile — possibly clonal, recorded unresolved) and to stem necrosis. Weak basal fruitfulness makes spur pruning unworkable — cane pruning is required. German clones We Elite, We 379, We 419; rootstocks SO4/Binova on richer sites, 5BB/125AA on drier ones. Site sensitivity is measurable: a 2002 LVWO comparison found an 11.2° Oechsle gap (75.6 vs 86.8) between two sites at comparable yields. Winemaking detail is thin here; producer practice fills the gap: Moric ferments on skins in open wooden vats with minimal punch-down from old low-yield vines; Judith Beck (biodynamic, respekt-BIODYN from the 2010 vintage) uses ~50% whole berries, ~3 weeks maceration, 10 months in used barriques, minimal SO2. In the glass: deep ruby-purple; sour and black cherry, blackberry, plum, a bright cranberry lift over the dark fruit, violets, black pepper, bay leaf; mossy earth; cedar with age. High acid, firm medium(+)-to-high tannin, moderate alcohol — a peppery, bright-on-dark fingerprint that separates it blind from softer Zweigelt and hotter New World Syrah. Mittelburgenland producers put its best form at 5–8 years after vintage.

Industry secrets

The DAC laws themselves contradict the wine press three times. (1) Leithaberg DAC red must be made from Blaufränkisch, full stop — the widely-copied '~85% plus St. Laurent/Zweigelt/Pinot Noir' rule actually describes the appellation's WHITE blend. (2) Mittelburgenland's famous '15% blending tolerance' appears nowhere in the regulation — the text only tolerates an unquantified 'designation-non-damaging' blend. (3) Mittelburgenland has THREE tiers, not two: Classic (label must state exactly 12.5% or 13.0% ABV), a forgotten middle tier with mandatory single-vineyard (Ried) naming, and Reserve (min 13.0%, oak allowed, released from 1 March of the second year). Eisenberg DAC regulates only geography, 100% varietal purity and release dates — zero style rules — and holds Ried wines until 1 September of the second year, the longest hold found. Both Burgenland DACs mandate a committee-designed bottle capsule as physical anti-fraud. In Friuli, 'Franconia' is not even in its home DOC's varietal list (confirmed from the disciplinare) and sells as Venezia Giulia IGT. Market reality: Austria's area fell ~9% (2,807 ha in 2015 to 2,550 ha in 2024) while prestige rose, and Hungary quietly grows ~3× Austria's area as Kékfrankos.

For collectors

More red grapes

• Bobal
• Boğazkere
• Bonarda
• Bonarda di Gattinara
• Bondola