What your mouth is telling you: acidity, tannins and body

That watering sensation you get when a wine makes you want another sip? That is acidity. It is not a flaw. Acidity is the freshness that makes a wine work alongside food and keeps it from feeling flat. A white with good acidity — a Vermentino, a Greco di Tufo — pairs naturally with fish and shellfish for exactly this reason. A wine with low acidity feels like sparkling water that has gone still.

Tannins are the drying, slightly gritty sensation you feel on your tongue and gums, mostly in reds. They come from grape skins, seeds and, when wine rests in barrel, from the wood itself. A young Barolo has tannins that are almost aggressive. The same wine after ten years in the cellar will have softened them, folded them in. If you want to feel the difference directly, put a lightly macerated young red next to an Aglianico or a Sagrantino: the contrast is immediate.

Body is how much weight a wine carries in your mouth. A light-bodied wine moves quickly, almost like water. A full-bodied one fills the whole mouth, sometimes with a near-creamy sensation. It depends on alcohol, residual sugar and dry extract. A Pinot Nero from Alto Adige is typically light. An Amarone della Valpolicella is the textbook example of something full. Neither is better; it depends on the moment and what you are eating.

Alcohol runs through all of this. A wine at 15 degrees or above will give a warmth at the back of the throat and a heavier feel in the mouth. One around 12 degrees will be leaner and fresher. On the label you will see a number followed by 'vol' — that is the percentage of ethanol by volume.

Terroir, grape variety and the denomination system: what the label is actually certifying

Terroir is a French word that Italian never found a precise equivalent for — which is why it borrowed it. It covers everything a place transmits to a wine: soil, subsoil, climate, sun exposure, rainfall, altitude. Two vineyards a hundred metres apart can produce completely different wines. When someone says a wine 'speaks of its territory', this is what they mean: something in the glass that cannot be replicated elsewhere.

A grape variety (vitigno) is the specific type of vine: Sangiovese, Nebbiolo, Glera, Vermentino. A varietal wine is made primarily from one variety. A blend (uvaggio) mixes several, as Chianti Classico does — Sangiovese combined with other local varieties permitted by the production code. Knowing the grape variety gives you a strong head start on understanding a wine's style before you open it. If you want to explore Italy's native varieties, the best Italian red wines section is a good place to start.

The denomination — DOC, DOCG or IGT — is how Italy certifies a wine's origin and, to varying degrees, how it was made. A DOCG (Denominazione di Origine Controllata e Garantita) has tighter rules than a DOC: approved grape varieties, maximum yields per hectare, minimum ageing times. An IGT (Indicazione Geografica Tipica) has fewer restrictions, which does not mean lower quality. Many Supertuscans, Sassicaia among them, are IGT precisely because they use international varieties not permitted under the traditional denominations.

Residual sugar is the amount of unfermented sugar left in the wine, measured in grams per litre. Below 4 g/l the wine is dry; from 4 to 18 g/l it is off-dry (abboccato in Italian); above that you move toward semi-sweet, sweet and passito styles. This matters most for sparkling and sweet wines. A Prosecco labelled Extra Dry actually contains more residual sugar than one labelled Brut — the names run counter to intuition, but that is the EU classification and it is worth knowing before you order.

Terroir, grape variety and the denomination system: what the label is actually certifying — Wine words worth knowing: what's actually in your glass

Balance, finish and the tasting terms you will keep hearing

Balance is probably the most useful concept in tasting. A balanced wine is one where no single component overrides the others: acidity, tannins, alcohol, fruit and mineral character all hold their place. Too much acidity and the wine attacks. Too much alcohol and it burns. Tannins out of proportion to the fruit and the wine just feels hard. Balance often comes with time, which is why some wines are described as having ageing potential.

Aromatic persistence measures how long the aromas stay in your mouth after you swallow. Professionals count the seconds, literally. A wine described as 'long' keeps evolving after the sip is finished. A 'short' wine leaves little trace. As a general rule, the longer the finish, the more interesting the wine.

The bouquet is the full range of aromas. It divides into three groups: primary aromas, which come from the grape itself — fruit, flowers, herbs; secondary aromas, which develop during fermentation — bread, yeast, butter; and tertiary aromas, which build with ageing — spice, leather, tobacco, dried fruit. When a sommelier mentions complex tertiary notes, they are telling you the wine has spent some years in the cellar. You will smell it too.

Sapidity is that mineral, almost saline sensation certain wines carry. It is distinct from acidity, though the two often get confused. Wines from volcanic soils or coastal vineyards tend to have more of it — an Etna Bianco, a Vermentino di Sardegna. Softness (morbidezza), by contrast, is the velvety quality given by glycerin, alcohol and residual sugar. A soft wine is easy and smooth to drink; too much softness without acidity and it becomes cloying quickly.

Maceration, ageing and refermentation: what happens before the bottle reaches you

Maceration is the contact between the grape juice and the solid parts of the grape — skins, seeds, stems. The longer it lasts, the more colour, tannin and aroma the wine extracts. For reds it is central to the process. For traditional whites, winemakers minimise or skip it entirely to keep the wine fresh and delicate. Orange wines — also called amber wines — are whites made with extended skin contact, which is why they have that amber colour and an unusual tannic structure for a white.

Ageing (affinamento) is the period a wine rests before release. It can happen in large oak casks called botti — the Slavonian oak barrels used for Barolo and Brunello — in barriques, which are the smaller 225-litre barrels of Bordeaux origin that transfer more oak flavour and vanilla character, in terracotta amphorae, in concrete, or in stainless steel. Steel gives nothing and preserves aromatic freshness. Wood allows slow micro-oxygenation and adds complexity. No method is categorically better; it depends on the style the producer is aiming for.

Refermentation in bottle is the method behind classic-method sparkling wines — Franciacorta, Trento DOC, Alta Langa. A base wine is bottled with added yeast and sugar, which triggers a second fermentation; the carbon dioxide stays trapped inside and creates the bubbles. The Charmat method runs the second fermentation in large pressurised tanks — this is how Prosecco is made. Charmat bubbles tend to be larger and less persistent; classic-method bubbles are finer and longer-lived. For a guide to producers, the best Italian sparkling wines page covers both methods.

Dosage is the final step in classic-method sparkling wine production: after disgorgement (sboccatura, the removal of the spent yeast), a small mixture of wine and sugar — the liqueur d'expédition — is added. This determines whether the result is Brut Nature (no added sugar), Extra Brut, Brut, Extra Dry, Dry or Demi-Sec. It is worth understanding because it changes the character of the wine entirely and, with it, what you would drink it with.

Wine words worth knowing: what's actually in your glass

Using this vocabulary to buy better and spend more deliberately

Knowing these terms has an immediate practical effect: you stop buying blind. Once you know what you are looking for — a mineral, fresh white for fish, a soft-tannin red for a low-key evening, a Brut for an aperitivo — labels and technical sheets start giving you usable information. Platforms like Vino.com publish full technical sheets with residual sugar, ageing method and tasting notes. Using them is the fastest way to sharpen your sense of what you like.

One approach that works well: before buying a more serious bottle, start with the grape variety and the denomination. A Nebbiolo delle Langhe without extended ageing will be very different from a Barolo DOCG with three years in barrel — but both will show you what the grape can do. Entry-level wines from important denominations are the most economical way to build your palate without commitment. There are real finds at accessible prices; the wines under 20 euro selection is a reasonable place to look.

One more thing: use these terms in reverse, to name what you do not like. If a wine feels hard and dries your mouth out, you are describing pronounced tannins. If it tastes flat and spineless, it lacks acidity. Giving a name to what you already feel is the first step toward choosing better next time — and toward explaining to the person in the wine shop what you are actually after, which will get you much more useful recommendations.

For whites, if you want to navigate the range from Soave to Alto Adige Chardonnay, from Fiano di Avellino to Verdicchio, the best Italian white wines selection uses exactly these terms in each entry, so you can connect the language to what is in the glass.

Domande frequenti

What does 'tannic' mean when describing a wine?

A tannic wine is high in tannins — the compounds that produce a drying, slightly rough sensation in your mouth, as if your tongue were being blotted. They come mainly from grape skins and from oak barrels. Reds with long maceration — Barolo, Sagrantino, Aglianico — are typically tannic. Over time, tannins soften and integrate, which is why some wines improve significantly with age and are sold with that expectation.

What is the difference between DOC and DOCG?

Both certify geographic origin and production method, but DOCG carries stricter requirements: tighter controls, lower maximum yields per hectare, often mandatory minimum ageing. DOCG bottles also carry a numbered government seal over the cork. That does not automatically make a DOC worse — the producer matters enormously — but the DOCG designation comes with more enforceable rules about how the wine was made.

What does 'single variety' mean, and how is it different from a blend?

A single-variety wine (vino in purezza) is made from one grape variety only. Brunello di Montalcino is pure Sangiovese — 'Brunello' being the local name for a specific Sangiovese clone. Barolo is pure Nebbiolo. A blend combines two or more varieties, either fermented together or assembled afterwards. Neither is superior by definition: some of the most complex wines in the world are blends; others are varietals made from a single row of a single vine.

What makes a wine 'dry'?

A dry wine is one where fermentation has converted almost all the grape sugar into alcohol. Residual sugar sits below 4 grams per litre. Most everyday red and white wine is dry. The word has nothing to do with tannin dryness — a wine can be completely dry in terms of sugar and still feel velvety and round in the mouth, or it can be dry and tannic at the same time. The two sensations are separate.

Can I order Italian wine if I am outside Italy?

Many of the shops linked from this site do ship internationally, though coverage varies by merchant and by country. Rather than listing countries here — where the information would go stale — each shop page shows the current delivery zones at the time you visit. If a specific bottle matters to you, check the merchant's shipping page directly; Italian wine retailers have expanded international delivery significantly in recent years, but the list of served countries still has gaps that are worth confirming before you add to cart.