Why it matters
The producer
Michael and Maria Gross farm 18 hectares of white wine vineyards in Štajerska Slovenija, split between two named appellations: Haloze in the south and Maribor to the north. Nothing is filtered. No additions or corrections enter the cellar. Across roughly 70 percent of the range, no sulfites are added at all. What makes Vino Gross legible is not the absence of intervention so much as the discipline behind it: Michael Gross makes every racking decision himself, treating the timing of that single action as the primary winemaking lever when chemistry has been taken off the table.
The wines do not taste like the zero-zero category tends to promise. They are clean, precise, and fruit-forward, with acidity that lifts rather than dominates and lees texture that adds weight without clouding the glass.
Place and vineyards
Where the wines begin
Štajerska Slovenija is Slovenia's eastern wine country, the Slovenian half of a continuous viticultural landscape that crosses the border into Austrian Styria. The Podravje wine region covers this territory, and within it Haloze and Maribor are the two appellations where Vino Gross works.
Haloze is the more distinctive address. The hills are steep and terraced, and the soil is Opok, a local marl with 24 to 35 percent limestone content. That limestone fraction is responsible for the acid grip in Vino Gross wines: the chalk-influenced marl drains well, keeps vine stress moderate, and holds enough mineral character in the fruit to give the wines a firm backbone without requiring any cellar correction. Maribor, further north, adds a cooler, slightly more Alpine character to parcels there.
In the cellar
Vineyards and cellar
Everything that can be done by hand is done by hand. The Haloze terraces are steep enough that mechanical work is limited in any case, and hand harvesting on Opok marl slopes produces the kind of careful fruit selection that matters when no correction is coming in the cellar.
For whites, maceration runs for a maximum of two hours before the juice settles. That brief contact extracts some texture and aromatic depth without moving the wine toward orange-wine territory. The wine then goes directly onto gross lees, where it stays for twelve months. Racking follows, and the wine sits on fine lees for another six to twelve months. Gross controls the racking timing personally, reading each wine rather than following a fixed calendar.
Wines to know
The range in view
The range centers on white wines from Haloze and Maribor, built from Pinot Blanc, Welschriesling, Sauvignon Blanc, and Furmint (known locally as Šipon).
Hisno Blanc is the blended entry wine, formulated differently each vintage. The 2022 combined 40 percent Pinot Blanc, 30 percent Welschriesling, 20 percent Sauvignon Blanc, and 10 percent Furmint, aged ten months on lees. The 2022 wine is green-fruited and zippy, with a slight mint note and lively acidity. The technique can shift vintage by vintage, with skin contact or semi-carbonic maceration entering the blend in some years. The wine is designed to be variable by intention rather than inconsistent by accident.
A useful way in
A bottle to begin with
Hisno Blanc is the right first bottle from Vino Gross. The blend, typically combining Pinot Blanc, Welschriesling, Sauvignon Blanc, and Furmint, is aged on lees for ten months and bottled without filtration or corrective addition. It is fresh and green-fruited, with a light mint lift, brisk acidity, and a lees-derived softness that keeps it from reading as austere. It shows what the cellar approach produces without requiring prior knowledge of the Haloze appellation or Slovenian Styria's grape varieties. The varietal blend also demonstrates how these four grapes behave together: each one contributes something the others do not, and the wine is more legible for it.