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What is Acidity in Wine & Why Does it Matter?

Posted on October 4, 2018

What do experts mean when they praise acidity in wine? Critics regularly enthuse about the racy acid of a German Riesling or the lively, crisp nature of a New Zealand Sauvignon Blanc. Why is acidity so important in wine appreciation?

According to tasting expert Michael Schuster in his excellent, Essential Winetasting book: “Acidity shapes and puts into relief the flavours in wine”. Consider a well-made Beaujolais or Burgundian Pinot Noir. The red berry and cherry notes seem to pop on the palate. This is due to the acidity in wine lifting and highlighting the fruit; giving it a juicy, tangy quality.

***Side note: I have also made this “Acidity in Wine” post into a three minute YouTube video. To watch, just scroll down to the bottom & click play. If you enjoy the video, consider subscribing to my YouTube channel so you never miss an episode of my weekly wine education series.

“Acidity shapes and puts into relief the flavours in wine”.

Acidity in wine is a crucial component for balance. Low acid wines – think cheap Viognier from a hot region – can feel flat and heavy. Sweeter wine styles lacking sufficient acidity are cloying. High alcohol wines, without freshness, appear almost thick on the palate and warming on the finish.

Balance is the ultimate gauge of wine quality. When all components that make up a wine’s character – its flavours, body, acidity, alcohol, dryness/sweetness, tannin, etc. – are in harmony, you may barely even perceive them individually. Rather, they coalesce to form a cohesive whole.

Acidity is a crucial factor in wine balance…though what constitutes balance is entirely personal…

What constitutes balance, when it comes to acidity in wine, is entirely personal however. High acid white wines like Riesling or Sauvignon Blanc can appear pleasant to some, and aggressive to others. The combination of high acidity and a very dry palate (˂2 grams/litre of residual sugar) can appear particularly austere to many tasters.

Residual sugar (occurring when fermentation is stopped before transforming all grape sugars into alcohol) can be a good thing for highly acidic wines, softening their sharp edges. It may surprise you how many notoriously high acid, seemingly dry wines are actually slightly sweet. Champagne, Riesling from multiple origins, and many New Zealand Sauvignon Blanc are just a few examples.

The capacity of a wine to age well is also greatly impacted by its acidity; notably when it comes to white wine. Acidity in wine acts like a preservative, significantly slowing down oxidation and playing a role in bacterial stability.

The capacity of a wine to age well is also greatly impacted by its acidity; notably when it comes to white wine.

It might be a little more apparent now why wine writers use so many terms to describe acidity in wine. In case you are wondering how to situate all of these weird and wonderful words on the scale of low to high acidity, I tend to use the following lexicon:

Low acidity: soft, lush, flabby, thick, heavy

Medium acidity: moderate, round

Medium + acidity: fresh, bright, lively, vibrant, brisk

High acidity: crisp, zesty, zippy, racy, bracing, piercing, laser-like, tangy, mouthwatering, steely, firm

Overly high acidity: sharp, jagged, tart, hard, malic, sour

Here is a selection of pleasingly balanced medium + to high acid wines that I have enjoyed recently:

(What do VW, PW, LW mean? Check out my wine scoring system to find out.)

Man Vintners Chenin Blanc Free-run Steen 2017, Western Cape, South Africa – 88pts VW

Attractive notes of yellow fruit are underscored by steely, mineral hints on the nose. Zesty acidity is matched by a taut structure and vibrant, ripe lemon flavours on this light bodied, unoaked Chenin Blanc. Clean and citrussy on the finish. For more on the Chenin Blanc grape, click here.

Where to buy: SAQ (17.05$)

Paco & Lola Albarino 2017, Rias Baixas, Spain – 89pts. VW

Not as exuberantly fruit forward as certain Albariños, but very pleasant all the same. Bright floral aromas mingle with candied white fruits (apple, pear, peach). Light in body, this crisp, yet rounded easy-drinking white features tangy orchard fruit flavours and saline hints on the finish. For more on the Spanish grape: Albariño click here and scroll down to the 4th paragraph (on Galicia).

Where to buy: SAQ (18.20$), LCBO (19.95$)

Domaine des Fines Caillottes Pouilly Fumé 2017, Loire Valley, France – 91pts. PW

I liked this so much in a recent blind tasting that I immediately went out to buy another bottle. Drinking very well now despite its youthful vigour, this aromatic Loire Valley Sauvignon Blanc is brimming with gooseberry, tropical fruit, and grapefruit notes. Upon aeration herbaceous nuances and hints of oyster shell develop. Bracing acidity is ably balanced by the medium body and expansive palate structure. Bone-dry and unoaked, with a long, lively finish.

Where to buy: SAQ (26.40$)

Zind-Humbrecht Riesling Turkheim 2016, Alsace, France – 93pts. PW

Fantastic value for the price. Intensely fragrant and complex, with spicy aromas (cinnamon, clove, and star anise) overlaying yellow fruits, white flowers, and wet stone nuances. The medium bodied, earthy palate is lifted by pure, racy acidity and a steely structure. Mineral hints and bright yellow fruis linger on the finish.

Where to buy: SAQ (27.10$)

Oremus “Mandolas” 2016, Tokaj, Hungary – 92pts. PW

This wine is made from the Furmint grape in the Tokaj region of Hungary, better known for their sweet, botrytised Tokaji wines. An incredibly stylish wine with intriguing hints of fennel, anise, and lemon on the nose. Crisp and highly textural on the palate, with medium body and a concentrated core of lemon, quince and orchard fruit. An attractive touch of phenolic bitterness frames the long finish nicely.

Where to buy: SAQ (30.25$)

Bret Brothers Mâcon-Villages “Cuvée Ephémère” 2016, Burgundy, France – 93pts. PW

I have yet to be disappointed by a wine from this producer. This lovely Mâcon is no exception. Lovely honeysuckle, yellow peach, and stony mineral notes feature on the nose. The palate is brisk, full-bodied and richly textured with good depth of flavour (yellow apple, peach, mango hints). The fruit is tangy and bright on the long, mineral-laced finish.

Where to buy: SAQ (35.50$)

Château Thivin Côte de Brouilly Cuvée Les Sept Vignes 2016, Beaujolais, France – 91pts PW

I tasted this first at the domaine earlier this summer, and subsequently bought a bottle upon returning home. Firstly, because it was so good. Secondly, because it was the same price at the cellar door and here! This wonderfully lively red features brisk acidity, and juicy red berry, cherry, violet, and spiced flavours. It is medium bodied, with earthy hints from ageing in oak oak foudres, and lovely, velvety tannins. Serve slightly chilled.

Where to buy: SAQ (24.55$)

Castello di Monsanto Chianti Classico Riserva 2014, Tuscany, Italy – 92pts. PW

I tasted a series of Chianti from this producer recently, including an exquisite 2013 ‘Vignetto Il Poggio” that was pretty darn near perfection in my humble opinion. Sadly, the 99$ price of this wine is a little out of my reach…sigh. For less than half that price, this Chianti Classico Riserva is really fantastic. Enticing aromas of sweet, stewed tomatoes, red cherry, dried herbs, and potpourri feature on the nose. Very fresh on the palate, with a lovely chalky texture, medium body, and spicy, cedar hints. The tannins are still a little firm. Cellar for 2 – 3 years, or serve with red meat to soften the tannins.

Where to buy: SAQ (35.25$), inquire with agent about the “Il Poggio” 2013: Elixirs Vins & Spiritueux

Acidity in Wine & Why it Matters Video!

Reviews Wines

A Comparative Tasting of Sauvignon Blanc

Posted on September 11, 2015

Summer is drawing to a close. The kids are back in school, and it is time for me to kick my own studies back in to high gear if I want even a microscopic chance of passing my Master of Wine (MW) exams next June. So while most diligent students are hitting the books, I will be hitting the bottle…hard. It is an interesting sight to see a new mother rocking her baby in his bouncy chair while simultaneously blind tasting a flight of wines (cue the boos and hisses on my awesome parenting!). But that is how I will be spending the next 9 months. Each week a new flight, tasted with a fellow MW candidate, and a new tasting article for you lucky folks.

Our journey begins with a comparative tasting of Sauvignon Blanc from the Loire Valley, Bordeaux, New Zealand, Chile and South Africa. This zesty white is generally high in acidity, dry, light bodied, with moderate alcohol; the definition of thirst quenching. Aromas range from citrus, grassy, gooseberry and mineral to more overt tropical notes, stone fruits and blackcurrant buds (the prettier, French description for the aroma Anglophones describe as “cat pee”). With the exception of sweet wines made from botrytised Sémillon/ Sauvignon Blanc blends, Sauvignon Blanc is generally meant to be drunk young (within 2 – 3 years of harvest), while the bright fruit aromas and bracing acidity are at their height.

I first discovered how seriously good Sauvignon Blanc can be on a visit to the Loire Valley, the presumed origin of the grape, shortly after I moved to France ten years ago. The charming, 11^th century village of Sancerre is perched on a hilltop looking down on its vineyards and pastures. The streets are lined with signs boasting wine tastings and little cafés where my friends and I ate sharp, earthy Crottin de Chavignol goat cheese, the perfect partner for the local tart, flinty white wine. After an epic, 4-hour tasting with Alphonse Mellot in his labyrinthine cellars, complete with scantily-clad ladies astride model bi-planes strung from the ceiling, I was hooked on Sancerre. Elegant and light bodied, with searing acidity, and delicate citrus, gooseberry and mineral-rich aromatics…impossible not to love. Neighbouring Pouilly Fumé makes a similarly whites, though generally in a richer and broader style.

A school tasting trip to the Graves area South of Bordeaux revealed a totally different style of Sauvignon Blanc to me. First of all because they tend to blend with the Sémillon grape, and secondly due to the often liberal use of French oak. The acidity is still quite striking, but the wines have more body and a subtly creamy, nutty texture. Aromas include lemon, grassy notes, currant bud, all underpinned by the oak flavours.

While France is its historic home, New Zealand claims to be the new king of Sauvignon Blanc. The majority of plantings come from the cool Marlborough vineyard on the South Island. Intense, “in your face” grassy, asparagus and gooseberry aromas dominate here, with riper examples showing lots passion fruit and peach notes. Most wines are unoaked, with racy acidity, light body and moderate alcohol.

Less well known currently, but growing rapidly in reputation are the cooler coastal areas of Chile (especially the Casablanca and the San Antonio Vallys) and South Africa (Western Cape coastal region and Cape South Coast). Both countries produce a range of styles, from lean and crisp to more lush and tropical. Their Sauvignon Blancs are regularly described as being mid-way between the restrained, elegant style of the old world and the overt, heady new world offers. I had the opportunity to taste some fantastically vibrant examples from the Walker Bay area South East of Cape Town when I worked there. The ocean breezes drifting in from the South Atlantic Ocean give a zesty, saline finish to the wines.

For the purposes of this initial overview tasting, I chose classic examples from the following producers (What do VW, PW & LW mean? Click on my scoring system for the answer):

Domaine Fouassier Sancerre “Les Grands Groux” 2013 – 92pts. PW

Domaine Fouassier farms his vineyard according to organic, and where possible, biodynamic principles. This wine shows excellent Sancerre typicity with elegant aromas of lemon, green apple and white florals hints on the nose. It has bracing acidity, a light body, integrated alcohol and an intriguing chalky minerality on the medium length finish. Very pleasant and balanced. Lacks the concentration and depth of flavour of top Sancerre.

Where to buy: SAQ (26.10$)

Michel Redde “La Moynerie” Pouilly Fumé 2013 – 91pts. PW

The third generation of Redde sons are currently running this 42 hectare estate in Pouilly Fumé. Grapes planted on flint, limestone and marl soils are blended here to create a mineral-laden nose, underpinned with citrus aromas. Vibrant acidity gives way to a rounded, smooth mid-palate. The finish is lifted and mineral. Highly drinkable and good value for the price, though not especially complex.

Where to buy: SAQ (25.75$)

Château Cruzeau Pessac-Léognan 2010 – 89pts. PW

Château Cruzeau is owned by the highly reputed Bordeaux producer, André Lurton. A deeper yellow gold colour is the first indication of the richer, fuller Bordeaux Sauvignon Blanc style. Intense currant bud, lemongrass, apple and oak aromas abound. Fresh, juicy acidity marks the palate, with a medium bodied, subtly creamy mid-palate and reasonable oak integration through-out. Short finish.

Where to buy: LCBO (25.25$), SAQ (24.95$)

Babich Marlborough Sauvignon Blanc 2014 – 93pts. LW

Family owned since 1916, this large, award winning estate offers high quality at incredible value. Pale, white gold. Surprisingly elegant; with less of the pungent grassiness of many comparably priced Marlborough Sauvignon Blancs. The nose is refined, with lemon, passionfruit, floral and subtle mineral notes. Lean, with racy acidity, lots of juicy passionfruit and lemon flavours and a soft, rounded finish. At less than 20$, this is a bargain.

Where to buy: LCBO (15.95$), SAQ (19.65$)

Caliterra “Tributo” Sauvignon Blanc (Leyda, Chile) – 85pts. VW

An entry level brand from the owners of leading Chilean winery Errazuriz. Caliterra “Tributo” is a clean, well-made but fairly simple offering, with pungent vegetal, guava and lemon notes on the nose. Crisp and light-bodied, with moderate alcohol. Easy drinking but unexciting for the price.

Where to buy: SAQ (16.95$)

Bouchard-Finlayson Walker Bay Sauvignon Blanc – 88pts. PW

This 25 year old winery sits on an incredible plot of land in the stunning Hemel-en-Aarde (Heaven and earth) Valley in the Walker Bay. Their house Sauvignon Blanc is an intensely aromatic offering though the lime, verbena, and grassy notes have a slightly acrid quality to them. More pleasant on the palate; smooth and light bodied with moderate acidity, lots of juicy peach and lime aromas through the finish.

Where to buy: SAQ (22.95$)