Balsamic Vinegar

Real balsamic vinegar, Aceto Balsamico Tradizionale, is made from one ingredient in Modena's rules: grape must, cooked over a direct flame for at least 30 minutes at 80 °C or more, then fermented, acidified, and aged a minimum of twelve years in a graduated set of wooden barrels. No wine vinegar, no caramel, no thickeners. It pours like a light syrup and tastes sweet before it tastes sour.

Two protected designations exist, both granted DOP status by the EU in 2000: Aceto Balsamico Tradizionale di Modena and Aceto Balsamico Tradizionale di Reggio Emilia. Modena's rulebook keeps «extra vecchio» for vinegar aged at least twenty-five years, and the consortium calls the twelve-year category «affinato», a word the rulebook does not use. Reggio Emilia grades by tasting score, with lobster, silver and gold labels; gold also requires at least twenty-five years.

What most bottles labelled balsamic abroad contain is a different thing: Aceto Balsamico di Modena IGP, an industrial condiment made by blending cooked or concentrated grape must with wine vinegar, with up to 2% caramel colouring permitted and a minimum ageing requirement of sixty days. It is a perfectly reasonable cooking ingredient. It is not the same product, and the label does very little to tell you so. Products sold as condimento fall outside both schemes: some are made from cooked must alone, others are thickened with sugar and starch. Only the ingredients list separates them.

Traditional balsamic is dense and glossy, and the first thing it does is taste sweet: dried fig, prune, cooked cherry, a hint of molasses. The acidity arrives second, as a lift rather than a sting, and the finish runs long on wood and something faintly resinous from the juniper barrel. It should never burn the throat.

At twelve years it is bright and fruit-forward with a clear acetic backbone. At twenty-five it is thicker, darker and quieter, more like a very old fortified wine reduced to syrup: the fruit turns to tar and liquorice and the acidity almost disappears under the concentration.

Supermarket balsamic is easy to identify once you know: the sourness comes first and hits the throat, the sweetness is flat because it comes from must blended with vinegar rather than from years of evaporation, and the finish stops almost immediately.

Never heat the traditional stuff. Twelve years of aromatics vanish in about ten seconds over a flame, turning a fifty-euro bottle into ordinary sour caramel. Use it raw, at the end, on a dish already plated and warm, where the residual heat is enough to open it, in quantities measured by the drop.

The canonical uses are all correct: a few drops over shavings of long-aged Parmigiano Reggiano, a drizzle over plain butter risotto, a few drops on a rare steak straight off the pan. Beyond that, roasted onions, grilled asparagus, and the one that surprises people, vanilla ice cream, where milk fat carries the acidity into liquorice territory. The strawberry pairing is real, and works best when the fruit is ripe and sits with the vinegar for ten minutes first.

Everything you actually cook with should be IGP: vinaigrettes, marinades, deglazing onions, reducing with meat juices. A good three-year Invecchiato does all of it for a fraction of the money. Buying Traditional and boiling it is the most common expensive mistake in the category.

Balsamic vinegar keeps for years, and the traditional kind has already spent twelve to twenty five of them in wood. Store the bottle upright and closed, away from the stove and out of direct light; a dark cupboard at room temperature is right, and the fridge is not, because cold thickens it and mutes the aromatics. Never decant it into plastic or into an oil style pourer with an open spout. A sealed IGP bottle carries a best before date, which is the number to work from.

What changes after opening is slow. The bottle loses a little volume to evaporation, the liquid thickens and darkens, and the volatile aromatics fade first, so a bottle left half full for two years tastes flatter and more caramel heavy than the day it was opened. Sediment or crystals settling out of a traditional bottle is a normal consequence of a concentrated must; pour gently and it stays behind. A 100 millilitre bottle used by the drop lasts most households a year, and the producer is the right person to ask about a specific bottle.

Three things share the word balsamic on a shelf abroad, and the label separates them. Aceto Balsamico Tradizionale di Modena DOP, or the Reggio Emilia version, comes in a sealed bottle: for Modena, the consortium's squat 100 millilitre bulb; for Reggio, an inverted tulip with sealing wax. Modena's ingredient list has exactly one line, cooked grape must, and it pours thick enough to coat the back of a spoon and cling. Aceto Balsamico di Modena IGP comes in bottles from 100 millilitres to 5 litres, lists wine vinegar alongside cooked or concentrated must, sometimes with caramel, and runs freely.

The third thing is glaze or crema di balsamico, thickened with sugar and starch and outside both schemes; it is a sauce, not a vinegar. Price makes the split obvious and is the clearest signal: 100 millilitres of Tradizionale at twelve years runs roughly $60 to $110, twenty five years well above that, while IGP sits anywhere between $6 and $40 a bottle. Anything sold as aged twenty five years for fifteen dollars is IGP with a story. Reggio Emilia grades by tasting score, with lobster, silver and gold labels, and gold also requires at least twenty five years.

In the US, Traditional DOP is stocked by Eataly, Gustiamo, Formaggio Kitchen and Zingerman's: expect 60 to 90 dollars for a twelve-year Affinato and 120 to 250 dollars for a twenty-five-year Extravecchio, both in 100 ml. In the UK, Italian delicatessens and specialists such as Vorrei and Natoora carry it at 55 to 80 pounds for the twelve-year and 110 to 200 for the twenty-five.

Check three things before paying: the bottle must be sealed (for Modena, the consortium's 100 ml bulb), the word Tradizionale must appear in the name, and on a Modena bottle the ingredients must read as cooked grape must alone. Anything labelled Balsamic Vinegar of Modena IGP is IGP, whatever the price.

For daily use, IGP marked invecchiato has spent at least three years in wood, and Riserva at least five. Condimento with cooked must as the only ingredient is another option, at roughly 30 to 70 dollars. Treat flavoured balsamics and glazes as sauces, not vinegars.

Modena is the obvious base. Dozens of family acetaie in the countryside around the city open for booked visits, usually on farms that also make Lambrusco and Parmigiano, and the standard tour ends with a side-by-side tasting of twelve-year and twenty-five-year, the fastest education available on what you are buying.

Spilamberto, twenty minutes from Modena, has the Museo del Balsamico Tradizionale and hosts the Palio di San Giovanni every June, when family batteries compete before a panel from the Consorteria, the local confraternity founded there in 1967. Modena keeps a municipal acetaia in the attic of its town hall, open for booked visits, and in the province of Reggio Emilia the first municipal acetaia opened in 2008 at Villa Tarabini in Albinea.

At the table, trattorie along the Via Emilia serve it the local way: on Parmigiano before the meal, on gnocco fritto and tigelle, on ice cream at the end. In many Modena restaurants the bottle arrives with a dropper.