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🍷 Fonseca Siroco

Producer's wine ✔ Checked: 10.2026 · sources: 6 Updated:

Fonseca Siroco: a White Port from Fonseca.

Fonseca Siroco is a White Port from the house Fonseca of Vila Nova de Gaia.

According to the house, it is a dry White Port first introduced in the 1950s and named after the warm sirocco wind; Malvasia Fina dominates, with Gouveio, Viosinho, Rabigato and Arinto from cooler, higher vineyards; fermentation runs longer than for other Ports.

Fonseca is a Port house known as Fonseca; according to the house, its first recorded Port trade dates from 1815, by the founder João dos Santos Fonseca, and the Guimaraens family has run it for generations.

Port (Porto) is a protected designation of origin of the Douro Demarcated Region in northern Portugal; the name has been in the EU register since 24 December 1991. Fermentation is stopped by adding grape spirit of 77 % vol approved by the IVDP, so the wine keeps natural sugar: Port has 19–22 % alcohol (light dry white from 16.5 %) and at least 17.5 g/l of sugar. The region is divided into Baixo Corgo, Cima Corgo and Douro Superior, with vineyards on steep terraced slopes.

According to the IVDP, Port comes as Ruby, Tawny, White and Rosé, with special categories — Reserve, LBV, Vintage, Colheita, wines with an age indication (10, 20, 30, 40, 50 and 80 years) and Crusted. Every lot is checked by the IVDP tasting chamber.

Under EU rules, a wine label must show the designation of origin, the actual alcoholic strength, allergens such as sulphites, and the name of the bottler. The word Porto on the label guarantees that the wine was made in the Douro Demarcated Region under the designation’s rules.

Why it matters to you. The category on the label (Ruby, Tawny, LBV, Vintage and so on) tells you how the wine was aged, not how strong it is. The WHO reminds: there is no safe level of alcohol.

On the map: Portugal

Facts

RegionDouro; lodge in Vila Nova de Gaia
CountryPortugal
Legal basisPDO Porto
kind of🍷Fonseca Guimaraens→📍Dourosimilar🍷Portsimilar🍷White Port🍷towardia.com
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How it connects to Wine

🍷 Fonseca Siroco → → → 📍 Douro → packed in → 🍷 Wine bottle ← packed in ← 🍷 Wine

Part of
🍷 Fonseca Guimaraens
Related to
📍 Douro
Similar and different
🍷 Port, 🍷 White Port

Frequently asked questions

Into which zones is the Douro of Fonseca Siroco divided?

Into Baixo Corgo, Cima Corgo and Douro Superior, with vineyards on steep terraced slopes.

Why does Fonseca Siroco keep some natural sugar?

Fermentation is stopped by adding grape spirit of 77 % vol approved by the IVDP, so part of the grape sugar stays in the wine.

What must a bottle of Fonseca Siroco show on its label under EU rules?

The designation of origin, the actual alcoholic strength, allergens such as sulphites and the name of the bottler.

Similar

🍷 Fonseca White Port · 🍷 Fonseca Bin 27 · 🍷 Fonseca Ruby · 🍷 Fonseca Tawny · 🍷 Fonseca 10 Year Old Tawny · 🍷 Fonseca 20 Year Old Tawny

⚠️ Wine contains alcohol: adults only, drink in moderation. Wine usually contains sulphites; egg white or milk proteins are sometimes used for fining — important for allergies and for vegans.

Sources

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