BiduleNatural Bubbles
Zdeněk Omasta. 7 hectares of estate-owned vineyards on quartenary loess in Modřice. Pét-nat & Traditional Method. Organic in conversion. The name comes from the small cup that collects yeast during disgorgement—like Bidule gathers people who love wine.
CUP
From corporate life to corks—Zdeněk Omasta's escape to natural bubbles.
Bidule was founded in 2022 by Zdeněk Omasta and two friends in Modřice, a village just south of Brno in the Moravian wine region. After thirteen years in corporate life, Zdeněk left his job to pursue natural winemaking full-time, establishing a project that treats the vineyard as a partner rather than a resource to be exploited [^53^][^63^].
The project started as a joint venture of three friends who share a love for sparkling wine, but Zdeněk stands as the experienced natural winemaker behind the operation—he has been active on the natural wine scene since 2015. Together, they built Bidule from scratch, developing 7 hectares of estate-owned vineyards planted on quartenary loess soils that give their wines distinctive character [^47^][^55^].
The name "Bidule" is deeply meaningful: it refers to the small plastic cup (bidule) inside the crown cap of sparkling wine bottles that collects yeast sediment during the disgorgement process. Just as the bidule gathers yeast in the bottle, the winery gathers people who share a passion for authentic, natural wine. Yeast is the basic element giving wine longevity; at Bidule, people are the equivalent—essential to the wine's life and character [^47^].
Operating with organic certification (in conversion), Bidule focuses exclusively on sparkling wines using both ancestral (pét-nat) and traditional methods. Their mission is to prove that Moravia has absolutely fantastic conditions for making fresh, sophisticated, and elegant bubbles [^34^][^62^].
"Partnership not agriculture—custodians guiding grapes into liquid art."
Bidule practices a philosophy of partnership with the vineyard rather than exploitation. They understand the vineyard as the artist who creates through the wine, while the winemaker acts as custodian, carefully guiding the transformation of grapes into liquid art. This means minimal intervention, allowing the vineyard to express its origin and authentic character without additives or shortcuts [^40^].
Their commitment starts in the vineyard, where they grow vines with care, respecting biodiversity and focusing on balance between vine and ecosystem. They see the relationship as reciprocal: if we want to take, we must also give. Quality growing conditions give quality grapes—the fundamental essence of wine [^40^].
In the cellar, they practice minimal intervention to preserve the authentic expression of terroir and vintage. Their target is to reflect the place where the vineyard grows and the year of the vintage through the wine. Therefore, they store rather than influence the wine, keeping these artifacts rather than transforming them into something unrecognizable. Every bottle tells a story of its specific time and place [^40^].
Sustainability extends to packaging and practice—every glass represents a commitment to ecological vineyard practices and eco-friendly packaging, treading lightly on the earth to preserve the soil for future generations [^40^].
Not
Agriculture
Quartenary loess—deep soils that shape Moravia's finest sparkling wines.
Quartenary Soils
The 7 hectares of Bidule vineyards sit on quartenary loess soils—fine-grained, calcareous deposits that provide exceptional drainage and mineral content. These deep soils, characteristic of the Modřice area near Brno, create the perfect foundation for sparkling wine grapes, lending elegant minerality and crisp acidity to the wines [^34^][^62^].
Owned Vineyards
Unlike many producers who purchase grapes, Bidule works estate-owned vineyards, giving them complete control over farming practices and grape quality. This ownership model allows them to maintain consistent organic standards across all 7 hectares and ensures that every grape reflects their specific terroir and meticulous care [^34^].
In Conversion
Bidule operates under organic certification (in conversion), using no synthetic chemicals or commercial preparations. Instead, they rely on natural ecosystem balance and organic viticulture practices. This commitment to clean farming means their loess soils remain living, breathing ecosystems that transmit authentic character to their sparkling wines [^34^][^40^].
Sparkling Potential
Located in the Modřice village of the Moravian wine region, Bidule exploits the area's unique combination of loess soils and continental climate. Zdeněk Omasta is proving that Moravia has "absolutely fantastic conditions for making fresh and sophisticated bubbles"—not just for still wines, but for world-class sparkling wines that rival traditional Champagne regions [^57^][^62^].
Pét-nat, Trinity Sekt, Sylvaner—elegant bubbles from Moravian loess.
Bidule Pét-Nat
The flagship natural sparkling wine—elegant, nuanced, and precise. Made from Chardonnay, Pinot Gris, Welschriesling, and Pinot Noir (pressed directly for white sparkling). Bottled while fermentation is still active, capturing natural CO₂ for vibrant, youthful character. Juicy, super-smashable bubbles with refreshing precision. Unfiltered, with slight cloudiness indicating authentic yeast presence. Perfect aperitif [^34^][^38^][^46^].
Pet Nat Welsch
A single-variety pét-nat made exclusively from Welschriesling grapes (also known as Graševina or Italian Riesling). This showcases the versatility of Moravia's workhorse grape when handled with natural methods. Fresh, aromatic, and terroir-driven, proving that even humble varieties can produce sophisticated sparkling wines when farmed organically on loess soils [^35^].
Trinity Sekt Brut Dosé Naturel
An elegant traditional method sparkling wine—the Trinity blend of three varieties crafted with meticulous precision. Floral, creamy, and refined, this is Bidule's take on classic champagne-style production. Aged on lees with natural yeast, bottled with minimal dosage (Dosé Naturel), showing that Moravian grapes can achieve the sophistication of traditional method wines. Czech Sekt elevated to art [^58^][^62^].
Bidule Sylvaner
While bubbles are their focus, Bidule also produces complex organic still white wines like this Sylvaner. Working the same 7 hectares of loess, this wine shows the terroir purity that defines their approach. Estate-grown, organically farmed, and minimally handled in the cellar to express the quartenary loess soils of Modřice. A thoughtful, precise white from a sparkling specialist [^54^].
Zweigelt & Frankovka
Bidule works with Moravian red varieties including Zweigelt (Rotburger) and Frankovka (Blaufränkisch) for both still and sparkling production. These varieties, typical of the region, are farmed organically on the loess soils and handled with the same minimal intervention philosophy. While their sparkling program takes center stage, these reds show the breadth of their estate plantings [^57^].
Riesling
Riesling from loess soils—while details are limited, as a Moravian producer with 7 hectares of diverse plantings, Bidule works with this noble variety. The combination of Riesling's natural acidity with the minerality of quartenary loess creates wines of exceptional aging potential and food pairing versatility, whether made as still wine or incorporated into their sparkling cuvées [^57^].
Why "Bidule"?
Small plastic cup inside crown caps that collects yeast sediment during disgorgement
🍾 Essential sparkling tool
Just as bidule gathers yeast, the winery gathers people who love wine
🤝 People = Wine's longevity
"Yeast is the basic element of wine, giving it longevity. In Bidule, they understand all the people involved in the work in the winery as the equivalent of yeast—essential to the character and life of the wine."
The Corporate Escape
Zdeněk Omasta represents the new wave of Moravian natural winemakers—professionals who left successful corporate careers to pursue authentic wine. After 13 years in corporation, he chose natural bubbles over boardrooms, establishing Bidule in 2022 as a sparkling wine specialist at a time when Moravia was known primarily for still wines [^53^][^63^].
With 7 hectares of estate-owned organic vineyards on quartenary loess in Modřice, Zdeněk is proving that Moravia can produce world-class sparkling wines using both ancestral (pét-nat) and traditional methods. Available internationally through More Natural Wine, Sublime Wine, Natural Wine Shop and served at venues like Praha Pije Víno, Bidule is elevating Czech bubbles to new heights [^47^][^57^][^62^].
The Bidule Pét-Nat has become their signature—juicy, smashable, and precise—while the Trinity Sekt proves that traditional method wines from Moravian loess can rival Champagne in elegance. All while maintaining their philosophy: partnership with the vineyard, not agriculture.
- Founded 2022
- Zdeněk Omasta
- 13 years corporate
- Natural since 2015
- 7 hectares
- Modřice location
- Estate-owned
- Quartenary loess
- Organic conversion
- Ecological farming
- No synthetic chemicals
- Pét-nat specialist
- Traditional method
- Ancestral method
- Chardonnay
- Pinot Gris
- Pinot Noir
- Welschriesling
- Sylvaner
- Zweigelt
- Frankovka
- Riesling
- Trinity Sekt
- Dosé Naturel
- Brut nature
- Minimal intervention
- No additives
- Partnership philosophy
- Sustainable packaging
- International distribution
- More Natural Wine
- Sublime Wine
- Natural Wine Shop
- Praha Pije Víno