Domaine Marcel Deiss

Domaine Marcel Deiss was founded in 1947 in Bergheim, next to Ribeauvillé, in the heart of the Alsace Grand Cru area. The Deiss family is a long line of winegrowers, blacksmiths and bell founders who settled in Alsace after the Thirty Years War. Jean-Michel Deiss followed the single-varietal route until 1990. In the 1990s he converted the domaine to biodynamic viticulture and turned away from single-varietal wines, planting several varieties in the same vineyard and harvesting and vinifying them together. In 2005 he succeeded in having the rules changed to permit Grand Cru labels that do not specify the grape variety. The estate is managed by Mathieu Deiss with the help of his father, Jean-Michel Deiss.

• 1947: domaine founded in Bergheim, next to Ribeauvillé.
• 1990s: conversion to biodynamic viticulture and the move away from single-varietal wines.
• 2005: rules changed to permit Grand Cru labels without the grape variety.
• Managed by Mathieu Deiss with the help of his father, Jean-Michel Deiss.

Mathieu Deiss manages the estate with the help of his father, Jean-Michel Deiss. Jean-Michel Deiss studied winemaking in Beaune, graduated in 1973 and worked with Jean Hugel, who became his mentor. By 2008 he had been elected to represent the Alsace grands crus in bureaucratic negotiations. In March 2024 Jean-Michel Deiss was the domaine's winemaker. Since 2020 each member of the estate's team has been given a set of plots to prune, disbud, trellis and maintain.

• Mathieu Deiss: manages the estate.
• Jean-Michel Deiss: helps manage the estate; studied winemaking in Beaune, graduating in 1973.
• Since 2020: each team member is assigned a set of plots to prune, disbud, trellis and maintain.

Complantation is the practice of mixing grape varieties within one terroir. At Domaine Marcel Deiss the vineyard is planted with the 13 Alsatian grape varieties, which are trained, harvested and pressed together and vinified without inputs. The practice began at the estate in 1984 with the takeover of the Grand Cru Schoenenbourg, planted after the First World War by the Preiss family of Mittelwihr. Officially planted with Riesling, that vineyard contained small circular areas of mixed grape varieties, some of them unknown. In 1990 the estate planted a vineyard on the Altenberg de Bergheim Grand Cru entirely in complantation, its varieties mixed without order; the estate calls it the first modern vineyard of this kind in Alsace. Its labels deliberately omit varietal information and proportions. Many winemakers, including Olivier Humbrecht of Zind-Humbrecht, were sceptical of Jean-Michel Deiss's claim that his complanted vines ripen simultaneously, Decanter reported.

• The 13 Alsatian grape varieties planted together, harvested and pressed together.
• 1984: takeover of the Grand Cru Schoenenbourg, a vineyard planted after the First World War with small circular areas of mixed varieties.
• 1990: a vineyard on the Altenberg de Bergheim Grand Cru planted entirely in complantation.

In 1993 wine from Deiss's Burg vineyard was attacked for not tasting like Riesling, and he removed the varietal name from his Burg wines. Leaving the grape variety off his Grand Cru labels was technically illegal until 2005, when he succeeded in having the rules changed to permit it. The estate's page for Altenberg de Bergheim calls it the first great Alsace terroir of the modern era to see, in 2005, the recognition of its specific typicity and of the diversity of its grape varieties, all the AOC Alsace varieties used in precise proportions. Other estates in Bergheim have since experimented with complantation, and Decanter credited Deiss's influence for an Alsatian-style field blend made by Channing Daughters winery on Long Island, New York.

• 1993: Burg wine attacked for not tasting like Riesling; the varietal name was removed from Burg wines.
• 2005: rules changed to permit Grand Cru labels without the grape variety.
• Other Bergheim estates have experimented with complantation.

The estate sits in the Ribeauvillé fault field, with vineyards on slopes in the communes of Rorschwihr, Bergheim, Ribeauvillé, Zellenberg, Riquewihr and Sigolsheim. Between Altenberg de Bergheim and Mambourg, only 12 km apart, there is a difference in earliness of more than 30 days. Altenberg de Bergheim lies in a field of geological faults combining hard Jurassic limestone and Lias marls, on a poor, red clay-limestone soil; its southern exposure, distance from the Vosges front and isolation from the Rhine plain give a hot, dry microclimate, and noble rot frequently amplifies ripeness. Schoenenbourg, in Riquewihr, faces south at a valley entrance on a steep slope of Keuper marl and gypsum covered by layers of Vosges sandstone; its microclimate is cold and late, and noble rot is almost always present. Mambourg dominates Sigolsheim, stretching nearly 1.3 km and covering 61.85 ha facing due south; it is the earliest slope of the vineyard, its soils derive from Oligocene limestones, and as early as 783 the wines of Sigoltesberg, today's Mambourg, were renowned. In spring 2024 Jean-Michel Deiss was planting Syrah, Grenache, Terret, Counoise and Cinsault at the Schloessleberg site near Rouffach, with Syrah and Grenache to go on one hectare, mixed with Pinot Gris and Pinot Noir. Deiss linked the move to a changing climate, saying the Alsatian climate 'is getting closer to that of Châteauneuf-du-Pape.'

• Altenberg de Bergheim: hard Jurassic limestone and Lias marls; southern exposure, hot and dry; frequent noble rot.
• Schoenenbourg (Riquewihr): Keuper marl and gypsum under Vosges sandstone; south-facing, steep, cold and late; noble rot almost always present.
• Mambourg (Sigolsheim): 61.85 ha facing due south on Oligocene limestones; the earliest slope of the vineyard.
• Spring 2024 plan: Syrah and Grenache on one hectare at Schloessleberg near Rouffach, mixed with Pinot Gris and Pinot Noir.

The range is organised into Grands Crus (Altenberg de Bergheim, Mambourg and Schoenenbourg), terroirs at premier cru level under classification, village wines and regional appellation wines. The premier cru level terroirs include Langenberg, Grasberg, Engelgarten, Rotenberg, Schoffweg, Burg, Gruenspiel, Huebuhl and the red Burlenberg; the village wines are Zellenberg, Ribeauvillé, Riquewihr, Saint Hippolyte Rouge and Berckem; the regional wines are Alsace Complantation and Alsace Rouge. Alsace Complantation is made from all 13 grape varieties allowed in the AOC. Mambourg is a field blend of the Pinot family: Gris, Noir, Meunier, Blanc and Beurot. Engelgarten combines Riesling, Pinot Gris, Pinot Beurot, Muscat and Pinot Noir, and Gruenspiel combines Riesling, Pinot Noir and Gewurztraminer. Burlenberg is a red wine of Pinot Noir with other Pinots, including Beurot, Meunier, Blanc and Gris.

• Grands Crus: Altenberg de Bergheim, Mambourg, Schoenenbourg.
• Premier cru level terroirs under classification: Langenberg, Grasberg, Engelgarten, Rotenberg, Schoffweg, Burg, Gruenspiel, Huebuhl, Burlenberg.
• Villages: Zellenberg, Ribeauvillé, Riquewihr, Saint Hippolyte Rouge, Berckem.
• Regional appellation: Alsace Complantation (all 13 AOC varieties), Alsace Rouge.

Biodynamic viticulture is practised throughout the 32-hectare vineyard, and the estate's first organic certification came more than 25 years ago. In the vineyard, soil work replaces weed killers, compost replaces synthetic fertilisers, diseases are treated with natural products such as nettle, horsetail and sulfur, and massal selections are used. Fruit trees are planted in the plots; even in the very wet 2016 vintage the estate never exceeded 1 kg of copper metal per hectare, with 700 g per year its long-term annual standard. In the cellar only natural yeasts are used, with no added nitrogen correctors, bacteria, enzymes or gum arabic, and no chaptalisation, acidification or deacidification. There is no crushing and no pumping; the wines age on the lees in large casks, and Jean-Michel Deiss devised an especially gentle filter for bottling.

• Certification: AB and Demeter.
• Copper: never above 1 kg of copper metal per hectare, even in 2016; 700 g per year as the long-term standard.
• Cellar: natural yeasts only; no chaptalisation, acidification or deacidification; no added enzymes, bacteria or gum arabic.
• No crushing or pumping; lees ageing in large casks; a gentle filter at bottling.

The estate's message is that 'a true terroir is always stronger than the grape variety planted.' In its own descriptions, Altenberg de Bergheim is sweet, complex and exotic; Schoenenbourg is a great white wine for laying down, semi-dry to mellow; Mambourg is a great white wine for gastronomy, dry, spherical and very fat; and Engelgarten is dry, mineral, warm and stony. The estate gives Schoenenbourg 25 to 40 years of keeping, Altenberg de Bergheim 20 to 30 years and Mambourg 15 to 20 years. Jean-Michel Deiss told Decanter that 'Altenberg always has residual sugar while Mambourg has little or none,' because sites such as Altenberg always get some botrytis.

Primary sources (producer's own site): https://www.marceldeiss.com/en/, https://www.marceldeiss.com/en/cms/1-presentation-domaine, https://www.marceldeiss.com/en/cms/2-complantation, https://www.marceldeiss.com/en/cms/3-biodynamie, https://www.marceldeiss.com/en/3-vins-alsace, https://www.marceldeiss.com/fr/cms/2-complantation, https://www.marceldeiss.com/en/our-wines/2-grand-cru-alsace-altenberg-de-bergheim.html, https://www.marceldeiss.com/en/our-wines/21-grand-cru-alsace-schoenenbourg.html, https://www.marceldeiss.com/en/our-wines/20-grand-cru-alsace-mambourg.html, https://www.marceldeiss.com/en/our-wines/18-engelgarten.html, https://www.marceldeiss.com/en/our-wines/12-alsace-blanc-complantation.html, https://www.marceldeiss.com/en/our-wines/25-gruenspiel.html, https://www.marceldeiss.com/en/our-wines/28-burlenberg.html. Secondary sources: Decanter (Stephen Brook, last updated 6 June 2020) and wein.plus (25 March 2024). Last verified 2026-10-14. Where the producer's site and a secondary source disagree, the producer's site governs.