Wine Handworker, Not Winemaker

The Sommer family has been making wine in Donnerskirchen, on the western shores of Lake Neusiedl, since 1698 — over three centuries of continuous viticultural tradition. [^85^] [^95^] For generations, the estate produced solid, traditional wines in a region better known for quantity than quality. But Leo Sommer, who officially took over from his father in 2023 alongside his sister Kathrin, saw a different future. [^86^] [^89^] Beginning around 2015, he began steering the winery toward more individual, terroir-expressive wines, and by the 2023 vintage the estate was officially organic-certified — a formalisation of practices that had been evolving for years. [^89^]

Leo describes himself not as a winemaker but as a "Weinhandwerker" — a wine handworker or craftsman. [^87^] This is not false modesty; it is a statement of philosophy. He sees himself in constant dialogue with the vines, the soils, and his years of experience — not imposing his will upon the wine but coaxing it into expression through patience, attention, and technique. The wines receive extended ageing on fine lees in a diverse array of vessels: stainless steel for freshness, large old oak barrels for texture, concrete eggs for mineral purity, and even acacia barrels for certain Grüner Veltliner expressions. [^85^] [^86^] This vessel diversity is not eclecticism for its own sake; each wine is matched to the container that best amplifies its terroir.

The Leithaberg region — the hilly western part of Burgenland, on the eastern slopes of the Leitha Mountains — is the key to understanding Sommer's wines. [^86^] Unlike the flat, lake-influenced eastern part of the region, Leithaberg is a landscape of slopes, forests, and ancient geological complexity. The soils are a mix of schist, limestone, gneiss, and quartz, with the Leitha limestone — a fossil-rich marine sediment — providing the distinctive saline, mineral backbone that defines the best wines here. [^85^] [^86^] The climate is warm Pannonian, moderated by cool winds from the Leithaberg hills and the proximity of Lake Neusiedl, creating long ripening periods that preserve acidity and freshness even in warm vintages. [^85^] It is, in Leo's words, a place where "the wines are not blenders" — they convince through depth, minerality, complexity, and above all, honesty. [^87^]

Leo Sommer's cellar philosophy is rooted in the "Handwerk" (craftsmanship) line — a series of wines that highlight careful, low-intervention methods to produce whites with great texture and fine minerality. [^85^] [^86^] But Handwerk is more than a product line; it is the ethos of the entire estate. Every wine, from the entry-level Welschriesling to the top single-vineyard Grüner Veltliner, is made with the same attention to detail and refusal to take shortcuts.

The approach is terroir-focused and low-intervention, but not dogmatically natural. [^86^] Leo uses sulfur when necessary — at low levels — and will fine or filter if a wine demands it, though most are bottled unfined and unfiltered. [^86^] The goal is not to adhere to a natural wine checklist but to produce the most honest, expressive wine possible from each site and each vintage. This pragmatic philosophy distinguishes Sommer from more rigidly ideological natural winemakers: he is willing to intervene when the wine needs it, but he will never intervene merely to impose a style.

The vessel diversity in the cellar is remarkable. Stainless steel tanks preserve the crystalline freshness of certain Grüner Veltliner and Sauvignon Blanc expressions. [^86^] Large old oak barrels (500L, 600L, 1200L, including acacia) build texture and complexity without adding wood flavour. [^86^] Concrete eggs — increasingly a signature of the estate — provide a pure, mineral expression by eliminating any wood influence entirely. [^85^] Some wines see a mix of vessels: the Handwerk Riesling, for example, is raised in large oak, acacia, and concrete, creating a layered, multi-dimensional wine that Stuart Pigott of James Suckling described as "combining the flintiness of a top Loire dry white with the focus and minerality I associate with Austria." [^86^] [^88^]

The reds — primarily Blaufränkisch and Zweigelt — are handled with equal care. The Leithaberg DAC Blaufränkisch includes 10% whole bunch fermentation and ageing in a mix of amphora and larger oak barrels, resulting in a fresh, supple, bright wine with lovely acidity and mineral, stony notes. [^86^] The Salz und Rauch Blaufränkisch — a non-vintage blend of 2021 and 2022 — shows fine reduction, textured cherry and berry fruit, and a grainy but resolved tannic structure that speaks of patient ageing. [^86^] At 12.5% alcohol, these are not the heavy, extracted reds of commercial Burgenland; they are wines of purity, finesse, and surprising lightness.