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Location: North-central Portugal, inland around Viseu, in the Beira landscape.
Shelter: Mountain ranges surround the region, including Serra da Estrela to the southeast.
Vineyards: Small, scattered vineyard holdings sit among hills, woodland and rocky terrain.
Identity: Start with native red blends and Encruzado whites; Dão is a protected wine origin, not a grape.

Seasons: Winters are cold and rainy; summers are generally hot and dry.
Mountain barrier: Surrounding ranges shelter the inland vineyards from direct Atlantic weather.
Elevation: Vineyards occupy varied elevations, reaching about 800 metres; 400–500 metres is an important regional reference.
Freshness: Temperature differences and site conditions can help retain freshness, but vintage and harvest choices still matter.

Granite: Poor, predominantly granitic soils are a central regional reference.
Variation: Some schist occurs; Dão is not one uniform soil type.
Water & roots: Soil depth, drainage and water availability change from site to site.
In the glass: Geology describes the vineyard setting; it does not guarantee a literal stone flavour.

Touriga Nacional: An important Dão variety, often contributing colour, floral character and firm structure.
Tinta Roriz: The Portuguese Tempranillo identity, also known as Aragonez.
Alfrocheiro: Can contribute colour, fruit and acidity to a blend.
Jaen: Known as Mencía in Spain; often gives fragrant, supple, early-drinking expressions.
Blend caution: These are principal reference varieties, not a requirement that every red contain all four.

Encruzado: Dão’s key white reference, with a useful balance of body and acidity.
Young styles: Can show citrus and floral notes in fresher, fruit-led bottlings.
Cellar choices: Oak fermentation or ageing and lees work can add texture; they are not compulsory for every Encruzado.
Other grapes: Malvasia Fina, Bical and Cerceal-Branco are important white blending references.
Ageing potential: Some examples gain complexity with age; grape name alone does not guarantee longevity.

Reds: Usually dry, from fresh, fruit-led blends to firmer, longer-lived wines.
Whites: Range from direct and refreshing to fuller, textured styles, including Encruzado-led wines.
Rosé: Dão also produces rosé; colour alone does not establish sweetness.
Sparkling: Sparkling wine is another authorised Dão category, with its own production and maturation rules.

Protected origin: Dão DOC / DOP requires grapes and production to meet its geographical and certification rules.
Wider IG: Terras do Dão is an IG / IGP with its own, broader specification; it is not another name for Dão DOC.
Red maturation: Standard still Dão reds require at least 8 months before release; there is no minimum for standard white or rosé.
Reserva: Read the local wine-category rules alongside national requirements; Reserva does not automatically mean an oak-aged wine.

Red structure: Freshness and tannin can suit roast meat, mushrooms or savoury legumes; match the wine’s weight to the dish.
White texture: Fresher whites suit lighter preparations; more textured Encruzado can work with richer fish or poultry.
Before pouring: Check maturity, oak and condition; decanting is a bottle-specific choice.
Useful contrast: Explain Touriga-led red structure versus Encruzado white texture, rather than describing every Dão as the same style.

Dão was formally demarcated on 18 September 1908; regulations for producing and trading its wines followed on 25 May 1910. These are separate milestones in its legal history.
From the mid-1990s, renewed investment by estate producers helped change Dão’s winemaking landscape. The regional commission identifies this as an important phase of its modern revival.