Noble rot
Encyclopedia
Fungus
A fungus is a member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds , as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from plants, animals, and bacteria...
, Botrytis cinerea
Botrytis cinerea
Botrytis cinerea is a necrotrophic fungus that affects many plant species, although its most notable hosts may be wine grapes. In viticulture, it is commonly known as botrytis bunch rot; in horticulture, it is usually called grey mould or gray mold.The fungus gives rise to two different kinds of...
, affecting wine
Wine
Wine is an alcoholic beverage, made of fermented fruit juice, usually from grapes. The natural chemical balance of grapes lets them ferment without the addition of sugars, acids, enzymes, or other nutrients. Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast...
grape
Grape
A grape is a non-climacteric fruit, specifically a berry, that grows on the perennial and deciduous woody vines of the genus Vitis. Grapes can be eaten raw or they can be used for making jam, juice, jelly, vinegar, wine, grape seed extracts, raisins, molasses and grape seed oil. Grapes are also...
s. Infestation by Botrytis requires moist conditions, and if the weather stays wet, the malevolent form, "grey rot", can destroy crops of grapes. Grapes typically become infected with Botrytis when they are ripe, but when then exposed to drier conditions become partially raisined and the form of infection brought about by the partial drying process is known as noble rot. Grapes when picked at a certain point during infestation can produce particularly fine and concentrated sweet wine. Some of the finest Botrytized wines are literally picked berry by berry in successive tries (French
French language
French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...
for "selections").
Origins
According to Hungarian legend the first aszúTokaji
Tokaji is the name of the wines from the region of Tokaj-Hegyalja in Hungary and Slovakia. The name Tokaji is used for labeling wines from this wine district. This region is noted for its sweet wines made from grapes affected by noble rot, a style of wine which has a long history in this region...
(a wine using botrytised grapes) was made by Laczkó Máté Szepsi in 1630. However, mention of wine made from botrytised grapes had already appeared in the Nomenklatura of Fabricius Balázs Sziksai, which was completed in 1576. A recently discovered inventory of aszú predates this reference by five years. When vineyard classification began in 1730 in the Tokaj
Tokaj-Hegyalja
Tokaj-Hegyalja is a historical wine region located in southeastern Slovakia and northeastern Hungary. Hegyalja means "foothills" in Hungarian, and this was the original name of the region....
region, one of the gradings given to the various terroir
Terroir
Terroir comes from the word terre "land". It was originally a French term in wine, coffee and tea used to denote the special characteristics that the geography, geology and climate of a certain place bestowed upon particular varieties...
s centered on their potential to develop Botrytis cinerea.
A popular myth is that the practice originated independently in Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
in 1775, where the Riesling
Riesling
Riesling is a white grape variety which originated in the Rhine region of Germany. Riesling is an aromatic grape variety displaying flowery, almost perfumed, aromas as well as high acidity. It is used to make dry, semi-sweet, sweet and sparkling white wines. Riesling wines are usually varietally...
producers at Schloss Johannisberg
Schloss Johannisberg
Schloss Johannisberg is a winery in the Rheingau wine-growing region in Germany, that has been making wine for over 900 years. The winery is most noted for its claim to have "discovered" late harvest wine.- History :...
(Geisenheim
Geisenheim
Geisenheim is a town in the Rheingau-Taunus-Kreis in the Regierungsbezirk of Darmstadt in Hessen, Germany, and is known as Weinstadt , Schulstadt , Domstadt and Lindenstadt ....
, in the Rheingau
Rheingau
The Rheingau is the hill country on the north side of the Rhine River between Wiesbaden and Lorch near Frankfurt, reaching from the western Taunus to the Rhine. It lies in the state of Hesse and is part of the Rheingau-Taunus-Kreis administrative district...
region) traditionally awaited the say-so of the estate owner, Heinrich von Bibra
Heinrich von Bibra
Heinrich von Bibra , Prince-Bishop, Prince-Abbot of Fulda was Prince-Bishop from 1759 to 1788.-Biography:...
, Bishop of Fulda
Fulda
Fulda is a city in Hesse, Germany; it is located on the river Fulda and is the administrative seat of the Fulda district .- Early Middle Ages :...
, before cutting their grapes. In this year (so the legend goes), the abbey messenger was robbed en route to delivering the order to harvest and the cutting was delayed for three weeks, time enough for the Botrytis to take hold. The grapes were presumed worthless and given to local peasants, who produced a surprisingly good, sweet wine which subsequently became known as Spätlese
Spätlese
Spätlese is a German wine term for a wine from fully ripe grapes, the lightest of the late harvest wines. Spätlese is a riper category than Kabinett in the Prädikatswein category of the German wine classification and is the lowest level of Prädikatswein in Austria, where Kabinett is classified in...
, or late harvest wine
Late harvest wine
Late harvest is a term applied to wines made from grapes left on the vine longer than usual. Late harvest is usually an indication of a sweet dessert wine, such as late harvest Riesling. Late harvest grapes are often more similar to raisins, but have been naturally dehydrated while on the vine...
. In the following few years, several different classes of increasing must weight
Must weight
Must weight is a measure of the amount of sugar in grape juice , and hence indicates the amount of alcohol that could be produced if it is all fermented to alcohol, rather than left as residual sugar...
were introduced, and the original Spätlese was further elaborated, first into Auslese
Auslese
Auslese is a German language wine term for a late harvest wine and is a riper category than Spätlese in the Prädikatswein category of the Austrian and German wine classification. The grapes are picked from selected very ripe bunches in the autumn , and have to be hand picked...
in 1787 and later Eiswein in 1858 (although Eiswein is usually made from grapes not affected by Botrytis).
Viticulture and uses
Tokaj-Hegyalja
Tokaj-Hegyalja is a historical wine region located in southeastern Slovakia and northeastern Hungary. Hegyalja means "foothills" in Hungarian, and this was the original name of the region....
in Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...
and Slovakia
Slovakia
The Slovak Republic is a landlocked state in Central Europe. It has a population of over five million and an area of about . Slovakia is bordered by the Czech Republic and Austria to the west, Poland to the north, Ukraine to the east and Hungary to the south...
(commonly called Tokaji, Tokajské or Tokay), Sauternes
Sauternes (wine)
Sauternes is a French sweet wine from the Sauternais region of the Graves section in Bordeaux. Sauternes is made from Sémillon, Sauvignon Blanc, and Muscadelle grapes that have been affected by Botrytis cinerea, also known as noble rot. This causes the grapes to become partially raisined,...
from France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...
- where the process is known as pourriture or pourriture noble, and Beerenauslese
Beerenauslese
Beerenauslese is a German language wine term for a dessert wine-style late harvest wine. Beerenauslese is a category in the Prädikatswein category of the Austrian and German wine classifications, and is a category above Auslese. Beerenauslese wines, often called "BA" for short, are usually made...
or Trockenbeerenauslese
Trockenbeerenauslese
Trockenbeerenauslese is a German language wine term for an intensely sweet dessert wine-style wine....
wines from Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
and Austria
Austria
Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...
. Other wines of this type include the Romania
Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...
n Grasă de Cotnari
Grasa de Cotnari
Grasă de Cotnari is a Romanian wine variety associated with the Cotnari vineyard, Moldavia, where it has been grown ever since the rule of Prince Stephen the Great . With the general decline in demand for sweet wines after the second world war and bad wine making during the communist era, Grasă...
, French Coteaux du Layon
Coteaux du Layon
Coteaux du Layon is an Appellation d'origine contrôlée for sweet white wine in the Loire Valley wine region of France. Coteaux du Layon is situated in the Anjou district of the region, along the river Layon, which is a tributary of the Loire River...
, French Monbazillac
Monbazillac AOC
Monbazillac is an Appellation d'Origine Contrôlée for sweet white wine produced in the village of Monbazillac on the left bank of the Dordogne River just across from the town of Bergerac in South West France. The appellation covers almost of vineyards.The AOC of Monbazillac was first established...
, Austria
Austria
Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...
n Ausbruch
Ausbruch
Ausbruch or sometimes Ausbruchwein is an Austrian wine term for a quality level in the Prädikatswein category. It is situated between Beerenauslese and Trockenbeerenauslese in requirements, which makes it a sweet dessert wine typically made from grapes affected by noble rot. The minimum must...
and South African Noble Late Harvest (NLH). Depending on conditions the grapes may be only minimally botrytized. Botrytis has also been imported for use by winemakers in California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
and Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
. In some cases inoculation occurs when spores are sprayed over the grapes, while some vineyards depend on natural inoculation from spores present in the environment.