What is 'terroir' or 'terruño'? 

On countless occasions we have read or heard this word of French origin that producers repeat like a mantra: terroir, or its Spanish adaptation, more traditional and vigorous, terruño. But what is the meaning of this much used and idealised term? 

The first to speak of this muse of wine were the French. Terroir is the cornerstone of the French wine philosophy and the basis of their appellation system. Used well, it can serve to define wine-producing regions and even mark out small areas of just a few hectares. There are great examples of this, such as the crus of Bordeaux or the tiny clos of Burgundy, based on very specific and detailed particularities. This term, which tries to cluster the most important aspects that give identity to a certain place, has been adopted by the world's best producers, who have endeavoured to translate their reading of the vineyard into wine, making palpable a concept that, apparently, could only be seen on paper.

The current system of appellations of origin participates in a similar sense, although most of the geographical delimitations in Spain have always been made with a much broader and more generalist perspective, whether for producers' interests, for political reasons or for historical reasons, but unfortunately rarely for influences of soils and climates, and ignoring political boundaries.

In search of the perfect terroir

There are places that, due to their origin, given the nature of their soil and climate, produce finer wines than others, more structured or more balanced, wines in which it is easier to reach a high level of complexity. We have in mind some of Jerez's most famous pagos such as the powerful Macharnudo or the subtlety and elegance of Balbaína, to name but two examples that are currently on the lips of many wine lovers. And as there are terroirs that are better than others, there are people obsessed with the search for these specific sites, who seek to vinify them separately in order to bottle a certain place.

On the left, a slate soil, on the right, a gravel soil.

Among the elements that make up a given terroir are the soils, one of the main agents in its definition. In Spain we have excellent terroir-enhancing agents. The most significant are slate soils (Priorat, Arribes, Ribeira Sacra, Güimar, Calatayud or Bierzo,...), stony soils (the best estates of Toro, some areas of Ribera de Navarra, areas near the Duero in Rueda, certain places in the Rioja Oriental or some estates in Tarragona,...), clay-localcareous soils with a predominance of limestone (Rioja Alavesa and nearby areas such as Sonsierra, Rioja Alta, the Valladolid area of Ribera del Duero, some parts of Calatayud, Jumilla, Yecla, Jerez, Montilla-Moriles, Terra Alta, Alicante, Cigales, Costers del Segre, Somontano.... ), granitic soils (Rías Baixas, Valdeorras, Ribeiro, some parts of Ribeira Sacra or Cebreros, Méntrida and Vinos de Madrid), or the volcanic soils of the Canary Islands. Each of these soils influences the definition of terroir, as they have the capacity to provide a differentiating touch in this complex world of wine.

On the left, an example of ferric pebble soil. On the right, volcanic soil in Lanzarote.

Everything adds up in the definition of a terroir

Soil is only one agent in the definition of terroir, important yes, but just one more. There are other very important factors, such as the prevailing climate, the exposure of the vineyard, the varieties... everything adds up when it comes to drawing up the picture of a particular terroir. The varieties have a certain growth cycle and certain properties, which give them a specific reading if they grow in the right place for them. The different families of grapes that exist achieve a major expression in certain places. If you are curious about the world of varietal aromas, we invite you to take a look at the article What do grapes smell like?

At the end of the 20th century Spain witnessed a kind of revolution in this sense, many important production areas began to carry out ambitious studies of soils and climates in their producing regions, in order to see the possible differences in the vineyard that in the future could be translated into structures, styles or even quality levels, as is the case with the vineyard of our neighbours.

There are areas that have bravely applied the segmentation and classification of their areas by quality levels, the first two to do so in great detail being Bierzo and Priorat. Elsewhere, the division has been in place for some time, although the regulations are not as specific as they should be in order to give greater protection to these specific pagos. We also have producing regions that, even though they talk about sub-zones, do not go as far as differentiating soils, climates and specific peculiarities. The good thing about all this is that there are still paths to explore, benefits to exploit in favour of differentiation.

Terroir is, as you can see, the manna that everyone wants to feed on but for which not everyone wants to pay the price it demands.