Sercial

What is Sercial? Sercial is a white Portuguese grape variety (Vitis vinifera) grown chiefly on the island of Madeira, where it lends its name to the driest of the four classic fortified Madeira styles. The wine is known for its sharp acidity, almond character, and very low residual sugar, making it the leanest and most bracing of Madeira's noble expressions. Sercial sits at one end of the Madeira sweetness spectrum, with Verdelho, Bual, and Malvasia (Malmsey) following progressively sweeter behind it. Beyond Madeira, the variety is also cultivated on mainland Portugal, where it is better known as esgana or esgana cao.

Origin and History

Sercial is native to Portugal and has long been counted among the four noble grapes of Madeira fortified wine, alongside Verdelho, Bual, and Malvasia. Its mainland name, esgana cao, translates loosely as dog strangler, a vivid reference to the grape's piercing acidity when underripe. The variety ripens late, which helps it preserve the sharp natural acidity that defines its style.

After phylloxera devastated Madeira's vineyards in the nineteenth century, Sercial actually became more common on mainland Portugal than on the island that made it famous. Today it is grown in diminishing quantities at the southern end of Madeira, where it produces small but prized harvests. A historical curiosity worth noting: the Australian grape Ondenc was once erroneously called Sercial, but the two are unrelated.

Style and Tasting Profile

Sercial Madeira is fermented almost completely dry, with very little residual sugar, roughly 0.5 to 1.5 degrees Baume, or about 9 to 27 grams per litre. As with all Madeira, fermentation is halted by adding neutral grape spirit, but in the Sercial style the fortification arrives late enough to leave the wine bracingly dry rather than sweet. To carry the single-variety label, the wine must contain at least 85 percent Sercial under EU rules.

In the glass it is the lightest, most acidic, and most delicate expression of Madeira, with high-toned colours, brisk acidity, and characteristic almond notes. It also takes the longest of the four noble varieties to mature, and a Reserve-designated bottling must spend a minimum of five years ageing before release. The result is a wine of considerable tension and finesse, capable of remarkable longevity.

How It Is Served

Because of its dryness and cutting acidity, Sercial is typically enjoyed on its own as an aperitif rather than with dessert. Served lightly chilled, it sharpens the palate and prepares it for a meal, much in the same role as a fino sherry or a dry vermouth. Its almond accents and saline edge also make it a natural partner for olives, almonds, hard cheeses, and consommes or other clear, savoury soups.