What is made here
Wine colours
Colours the rules allow. Pick a colour to filter the rules and grapes below.
Where it is
Alsace grand cru Ollwiller in France
- Latitude
- 47.9°–47.9° N
- Vineyard altitude
- 298 m to 373 m
- Delimited vineyard land
- 34 ha
Lies within
Alsace, Crémant d'Alsace
Worked out from the boundaries (smallest container first). Uses the delimited parcels where INAO publishes them.
The delimited vineyard parcels themselves, so the shape is patchy: only land within them may grow the wine. Boundary: INAO parcel delimitation (Licence Ouverte); nearby parcels drawn as one block, with less detail for larger appellations. Country outlines: Natural Earth. Dots on the zone map are the vineyard points used for climate.
Showing every colour The colour filter changes the rules and grapes. Climate, vintages and soils describe the vineyards, so they stay the same.
01 · What the law says
The rules
Limits on grapes, yields, ripeness and ageing that every wine labelled Alsace grand cru Ollwiller must meet.
In the vineyard and cellar: rules for every wine
4,500
Vines per hectare, minimum
Training
Systems allowed
taille Guyot simple; taille Guyot double
Prohibited
Irrigation
Allowed
Enrichment (chaptalisation)
02 · Climate fingerprint
The climate
The growing season averages 15.2 °C, intermediate on Gregory Jones's scale, with 1,144 growing degree days (Winkler Ib).
The average year 1991–2020, vineyards at about 330 m
Monthly mean, °CRain, mmGrowing season
- Growing-season temperature
- 15.2 °C
- Intermediate · 15–17 °C (Jones)
- Growing degree days
- 1,144
- Region Ib: 1,111–1,388 degree days
- Growing-season rain
- 680 mm
- Of 1,121 mm a year
- Harvest rain
- 180 mm
- September–October
Copernicus ERA5-Land monthly averages at 5 vineyard points (Vineyard point 1, 339 m; Vineyard point 2, 329 m; Vineyard point 3, 298 m; Vineyard point 4, 373 m; Vineyard point 5, 313 m), moved to each point's height from the model's terrain. Indices that need daily data are not captured yet. How the climate figures are made.
Lower confidence:Monthly reanalysis in moderately complex terrain; not yet checked against a weather station.
Closest climates in the database
Picked by the data, not by hand: the profiles nearest on season warmth (counted twice), degree days, rain, ripening-month nights and day–night range. Neighbours within 30 km are left out, as they share the same weather.
1. Alsace grand cru SchoenenbourgVery similarCompared with Alsace grand cru Ollwiller: same season warmth, similar rain.
2. ArboisVery similarCompared with Alsace grand cru Ollwiller: same season warmth, similar rain.
3. SteiermarkVery similarCompared with Alsace grand cru Ollwiller: same season warmth, similar rain.
Growing-season temperature
Growing degree days
Growing-season rain
03 · Year by year
35 vintages
Each column is one growing season: heat above or below the 1991–2020 average, and rain at harvest. Pick a year for the details.
Warmer than averageCooler than averageHarvest rain (Sep–Oct)Average harvest rain, 180 mm
2025
- Growing-season temp.
- Growing degree days
- Harvest rain
- Growing-season rain
- September nights
- Hot days and frosts
Seasons are labelled by harvest year (April–October). Year-to-year changes from ERA5-Land; tested against station records in Alto Adige (r = 0.94 for season temperature at Bolzano). Rain varies more locally, so treat single-season rain with some caution. Vintage ratings, harvest dates and frost or hail events have places in the data model but are not loaded yet.
04 · Where the numbers come from
Sources
- A geospatial inventory of regulatory information for wine protected designations of origin in Europe · Candiago et al., Scientific Data 9, 394 (2022); Eurac Research · CC0
- Quality wines in Italy and France: a dataset of PDO specifications · figshare 25393261 · CC BY 4.0
- ERA5-Land monthly averaged data (reanalysis-era5-land-monthly-means) · Copernicus Climate Change Service (C3S), Climate Data Store · CC BY 4.0 (Copernicus licence)
- OpenStreetMap vineyard areas (landuse=vineyard), from Geofabrik country extracts · OpenStreetMap contributors · ODbL 1.0
- Copernicus DEM GLO-90 (AWS open data tiles) · European Space Agency / Copernicus · Copernicus DEM licence
- Cahier des charges: Alsace grand cru Ollwiller (Cahier des charges de l'appellation d'origine contrôlée Alsace grand cru, homologué par l'arrêté du 4 juillet 2025 (AGRT2516557A) - BO n°29 du 17 juillet 2025) · Ministère de l'Agriculture (Bulletin officiel), as linked by INAO · Official act
- Délimitation parcellaire des AOC viticoles de l'INAO · Institut national de l'origine et de la qualité (INAO), via data.gouv.fr · Licence Ouverte / Open Licence (Etalab)
- Appellation nesting worked out from boundaries (pipeline/build_nesting.py) · Vinous, from the Eurac PDO boundaries · CC0 (source data)
- Climate profiles calculated by Vinous: method
Still to check (3)
- Generated from EU reference data: check against the current product specification.
- From the specification: Shared cahier des charges for all 51 Alsace grands crus; Ollwiller has no specific rules and is reserved for still white wines. Wines come from a single variety (gewurztraminer, muscat, pinot gris, riesling) or a blend of the muscats, and ripeness and alcohol limits depend on the variety on the label, so they are left null: dry wines need 195 g/l sugar and 12.5% natural alcohol for gewurztraminer and pinot gris (170 g/l and 11% for other varieties) and may not exceed 15% total alcohol after enrichment (14% for riesling and muscat); enrichment is limited to +0.5% vol. (gewurztraminer, pinot gris) or +1.5% vol. (others). Vendanges tardives (governed separately but not in the register, added as a product) need 270 g/l and 16% for gewurztraminer and pinot gris, 244 g/l and 14.5% for muscat and riesling; sélection de grains nobles need 306 g/l and 18.2%, or 276 g/l and 16.4%; neither may be enriched, young vines qualify only from the 9th year, and both are aged until 1 June of the second year after the harvest. Hand harvesting is compulsory; still wines are aged until 1 November of the year after the harvest; overall production limit 77 hl/ha; wood chips, continuous presses, centrifugal pumps and plastic sheeting are banned; bottles must be the 'Vin du Rhin' type.
- National tier (DOC/DOCG) not captured yet; rules extracted from the specification text.