Switzerland · Vaud

Hammel - Terres de Vins

Vaud estate founded 1921, 160 hectares across four AOCs, biodynamic farming since 2006, known for Clos du Châtelard red wines.

The producer

Hammel was one of Switzerland's largest wine operations. Charles Rolaz decided it would become a smaller one. Over recent decades the estate contracted from roughly 350 hectares to 160, shedding vineyards not to cut costs but to concentrate farming effort on ground worth the attention. Headquartered at Rolle on the northern shore of Lake Geneva, Hammel now manages those 160 hectares across four AOC zones: La Côte and Lavaux along the lake's northern shore, Chablais at its eastern end, and Valais following the Rhône valley inland. Rolaz has been publicly direct about the logic: we don't want to be larger, but better.

The biodynamic commitments that followed the contraction are a consequence of that choice. Practices began on portions of the vineyards in 2006, and Domaine de la Bolliattaz in the Lavaux earned full Demeter certification, the independently audited standard that prohibits synthetic inputs and requires documented farming records. At the top of the range, Clos du Châtelard in Villeneuve produces two wines that have drawn external attention: a Pinot Noir Barrique cited by Decanter among the world's best Pinots in its 2020 vintage, and Hypérion, a Cabernet Franc and Merlot blend built for 12 to 15 or more years in bottle.

Known for

Cabernet Franc and Merlot blends (Hypérion), Pinot Noir Barrique, Chasselas whites across four Vaud AOC zones.

Notable facts

The story

Better, Not Larger

At some point in the estate's recent history, the vineyard map at Rolle showed roughly 350 hectares of land under management. Charles Rolaz looked at that map and decided to shrink it. The reduction to 160 hectares was not forced by financial pressure or regulatory change; it was a choice. Parcels were released, contracts ended, and the operation that emerged was just over half the size of what it had been. Rolaz said publicly what the logic was: we don't want to be larger, but better. The biodynamic program that followed could not have been rolled out across 350 hectares at the same standard. Demeter certification at Bolliattaz came after the contraction, not before it. The Decanter citation for the Clos du Châtelard Pinot Noir Barrique 2020 arrived later still. Less land, more care, better wine.

From the atlas

Hammel - Terres de Vins

At A Glance

The Producer

Hammel was one of Switzerland's largest wine operations. Charles Rolaz decided it would become a smaller one. Over recent decades, the estate contracted from roughly 350 hectares to 160, shedding vineyards not to cut costs but to concentrate farming effort on ground worth the attention. That deliberate reduction is the clearest thing to understand about Hammel today: scale was chosen against, and what remained was reshaped.

Headquartered at Rolle on the northern shore of Lake Geneva, Hammel now manages 160 hectares spread across four AOC zones in Vaud and into the Valais. Rolaz has been publicly direct about the logic: "We don't want to be larger, but better." The biodynamic commitments that came after the contraction are a consequence of that. When there is less land, it becomes possible to farm it differently.

Place

Lake Geneva's northern shore divides into distinct wine country depending on which direction you travel from Lausanne. West toward Geneva, the La Côte AOC runs along a gentle slope above the lake, with Rolle near its midpoint. East of Lausanne, the Lavaux AOC rises into UNESCO-listed terraced vineyards carved directly into steep hillsides above the water, where retained heat from the lake, the sun, and the stone walls keeps grapes ripening through the late season. Further east, at the lake's far end where the Rhône enters from the mountains, the Chablais AOC produces wines with more mineral character and firmer acidity than the softer La Côte zone. Inland from there, the Valais AOC follows the Rhône valley upriver into continental conditions: hotter summers, drier air, and a different set of grape possibilities.

Hammel operates in all four zones. Each carries its own label designation and its own grape emphasis. La Côte and Lavaux lean toward Chasselas, the pale-skinned indigenous grape that accounts for most white Vaud wine, along with indigenous Swiss reds. Chablais, where Clos du Châtelard sits, allows Bordeaux varieties to ripen with more consistency than most of the region. That is why Hypérion, the Cabernet Franc and Merlot blend, comes from Villeneuve in Chablais rather than from Rolle or the Lavaux terraces.

Soil And Site

Clos du Châtelard in Villeneuve, the origin of Hammel's most recognized red wines, holds Grand Cru status within the Chablais AOC. The site benefits from the warmth that accumulates at the eastern end of the lake and from the shelter the Alps provide against cold northern air. Domaine de la Bolliattaz in the Lavaux zone, where Hammel's biodynamic conversion began, sits on the terraced slopes above the lake where the combination of reflected water light and stone heat allows full phenolic development even in cooler vintages.

Story

Hammel was founded in 1921 and grew across most of the twentieth century into one of Switzerland's larger wine operations. By the time Charles Rolaz took charge of the estate's direction, the vineyard portfolio had reached around 350 hectares, spread across multiple zones and appellations. The scale that had built the business was also limiting what it could become.

Rolaz began pulling back. The contraction to 160 hectares was deliberate: parcels that could not be farmed with enough attention were released. What stayed was held to a higher standard. In 2006, biodynamic practices began on portions of the remaining vineyards, a commitment that requires more labor per hectare and produces lower yields. Domaine de la Bolliattaz in the Lavaux became the first to earn Demeter certification, the independent body that audits biodynamic farming. The certification is not decorative; it requires documented farming records, prohibition of synthetic inputs, and regular inspection.

The Decanter citation for the Clos du Châtelard Pinot Noir Barrique 2020 among the world's best Pinots landed as external confirmation that the reduced, more carefully farmed estate was producing wine at a different level than the larger operation had.

Vineyards And Cellar

Biodynamic farming across portions of 160 hectares means cover crops, compost applications timed to lunar and seasonal cycles, and the elimination of synthetic herbicides and pesticides. At Bolliattaz, Demeter certification requires that the farming is audited externally, not self-declared. The practical effect in the vineyard is lower-intervention soil biology, deeper root development over time, and a different relationship between the vine and the water table.

At Clos du Châtelard, the Cabernet Franc and Merlot that go into Hypérion are aged to build the dense, layered tannin profile the wine is known for. The aging timeline runs long: the wine is designed for 12 to 15 or more years in bottle, which requires that the tannins are ripe enough to integrate and the acidity is sufficient to sustain the wine across that period. Barrel work during elevage shapes the tannin grain and contributes spice. The Pinot Noir Barrique from the same vineyard goes through oak aging separately.

Wines

Hammel's range spans four AOC zones, with indigenous Swiss varieties at the base and Bordeaux varieties at the top of the premium tier.

La Côte AOC wines from the Rolle zone include Chasselas whites, the grape that forms the backbone of most white Vaud wine. Chasselas produces pale, dry whites with low aromatics, light acidity, and a clean, stone-fresh finish that pairs naturally with lake fish and fondue. It is not a grape that builds in the bottle; it is made for the table.

Lavaux AOC whites from Domaine de la Bolliattaz carry more mineral edge, shaped by the terraced hillside sites and the longer growing season the lake's thermal mass provides. Biodynamic farming on these parcels pushes vine roots deeper, and the resulting whites tend toward drier, more saline characters with a firmer acid line.

From Chablais AOC, Clos du Châtelard produces two wines at the premium level. The Pinot Noir Barrique is a red wine aged in oak, producing a wine with dark cherry and berry fruit, firm tannins, and enough acid to age. Decanter placed the 2020 vintage among the world's best Pinots, an unusual citation for Swiss Pinot, which rarely travels far beyond domestic markets. Hypérion is the estate's most ambitious bottle: a Cabernet Franc and Merlot blend with saturated fruit, a dense mid-palate, and tannins built for long bottle development. Wild berry, elderberry, and spice on the nose; cherry, blackcurrant, plum, and raspberry on the palate with violet and licorice running underneath. The finish is long and firm, with oak-derived spice held in check by ripe acidity.

In The Glass

Across the Hammel range, the clearest contrast is between the Chasselas-based whites and the Clos du Châtelard reds. Chasselas opens with a faint apple and wet stone nose, almost neutral, and delivers in the mouth through texture rather than flavor density: soft, round, with low acidity and a clean, dry finish. Nothing lingers; it is a wine of presence rather than persistence.

The Lavaux whites from Bolliattaz shift register. The nose carries more mineral lift, the acidity is firmer, and the mouth feel has more weight without crossing into richness. The finish holds longer and leaves a saline impression.

The Clos du Châtelard Pinot Noir Barrique opens on dark cherry and dried rose with an oak-smoke thread underneath. In the mouth, the tannins are medium-firm, the acidity bright, and the fruit held in focus without diffusing. It does not demand long aging but rewards two to four years in bottle.

Hypérion is a different scale altogether. The nose is saturated: wild berries, elderberry, a curl of spice. The palate is broad and dense, with blackcurrant and plum leading, then raspberry and violet moving through, and licorice on the finish. The tannins are grippy now but layered; they need time to knit. The acidity is firm enough to carry the wine across a decade or more of bottle life.

A Bottle To Understand It

Hypérion, Clos du Châtelard Grand Cru Villeneuve 2020. Cabernet Franc and Merlot, aged in barrel, built for 12 to 15 or more years in bottle. On the nose: wild berries, elderberry, and spice. On the palate: blackcurrant, plum, and dark cherry with violet and licorice underneath and a long, firm finish. The tannins are dense and need four to five years minimum before the wine opens fully. This is not a casual bottle; it is the wine that shows what Hammel's reduced, more carefully managed estate can produce when it commits to a single vineyard and a long timeline. Start here if you want to understand what the Clos du Châtelard site delivers and why the contraction to 160 hectares was worth making.

Anecdote

At some point in the estate's recent history, the vineyard map at Rolle showed roughly 350 hectares of land under management. Charles Rolaz looked at that map and decided to shrink it. The reduction to 160 hectares was not forced by financial pressure or regulatory change; it was a choice. Parcels were released, contracts ended, and the operation that emerged was just over half the size of what it had been. Rolaz said publicly what the logic was: "We don't want to be larger, but better." The biodynamic program that followed could not have been rolled out across 350 hectares at the same standard; 160 made it possible. Demeter certification at Bolliattaz came after the contraction, not before it. The Decanter citation for the Clos du Châtelard Pinot Noir Barrique 2020 arrived later still. The sequence runs in one direction: less land, more care, better wine.

Final Word

Hammel is a Swiss estate that made an unusual argument by action: that a large wine producer could become a more serious one by becoming a smaller one. The four-AOC spread gives the range geographic breadth, and the Clos du Châtelard reds give it a top tier that has drawn external attention. Hypérion is the bottle worth seeking.

Sources