Wednesday 9 December 2015

Wine Acidity: A Guide to An Essential Wine Characteristic – Moncharm Fine Wine Merchants





Wine Acidity: A Guide to An Essential Wine Characteristic


Fine Wine Blog Wine Acidity Wine Guide Wine Tasting

Wine acidity is a confusing concept for many, and the taste of acidity is frequently mistaken for tannins or alcohol. But the acid in wine plays an important role.
From a functional perspective, acidity is crucial for the preservation of wine. Proper wine acidity prevents spoilage of the wine and inhibits microorganism growth – while an acidity level too low will ruin the wine quickly as it will go bad.
The acidity of your wine is also important from an enjoyment perspective, providing balance and zest. We discuss in greater detail in this quick guide to wine acidity.

What Does Acidity Taste Like In Wine?

For an easy generalization, wines with higher acidity feel lighter or “zestier,” while wines with less acidity feel heavier or “richer.” Acidity can be recognized as a tingling sensation at the sides of the tongue, or a bumpy feeling on the rough of the tongue, with a prominence of saliva in the mouth.
Wine lacking acidity tastes flat and boring, while wine with too much acidity is too tart and sour. Acidity and sweetness in an ideal wine should correctly be used to balance each other.
Proper acidity proportions can enhance a wine’s refreshing qualities, and can complement paired foods exquisitely. This is achieved incredibly well in highly regarded fine wines such as those from these wine investment regions.

Types Of Acid In Wine

Four types of acid are found most commonly in grapes and in wine. The presence of a fifth type of acid (acetic acid or vinegar) should be found only in tiny amounts in good wines, because in large amounts it indicates a wine flaw – a common occurrence in cheap table wine. Acetic acid is undesirable and volatile.
Tartaric and malic acid are the most common acids in wine, and are created in grapes as they mature on the vine, with acidity decreasing as the grapes continue to mature. In general, wines from cooler years and areas tend to have higher acidity and lower sugar.
Warm climate grapes tend to have lower acid and higher sugar. Colder climates’ acidity is preserved better as compared to warm climates (thus presenting a higher level in the wine), because warmth and sunlight cause grapes to both mature and lose acidity faster.

Measuring Wine Acidity: TA & pH

TA (or total acidity) is measured under the assumption that a wine’s acid is all tartaric, and measures the percentage of acid in the wine. Total acidity is recorded as grams per 100 mL of wine. The general range is between 0.4% and 1.3%, with a most desirable range between 0.6% and 0.7%.
Wine that tastes too tart and sour would rate near 1.0%, while wine that tastes flat and boring is near 0.4%. An average red table wine is about 0.6%, with the average white wine just slightly higher.
An exception is very sweet white dessert wines, which may have acidity above 1%. This is considered very high, but necessary to balance the high sugar.
pH, on the other hand, measures active acidity. It is a logarithmic measure of wine acidity, meaning that a pH of 4 translates in 10 times more acidity than a pH of 5. The lower the pH number, the higher the acidity. If a pH is too high, microorganisms may grow in the wine.
Most wines are between the pH levels of 3.3 and 3.7.
To learn how you can find the acidity measurements of your wine, we recommend reading our recent article on wine tech sheets.

Understanding Your Fine Wine

The enjoyability of your wine drinking experience is often times dependent on your knowledge of it. It is this knowledge that helps you choose the right wine for your palate, and keep choosing right wines in the future. This is why we bring you weekly articles and guides here on our blog!
We hope understanding wine acidity will help you better understand your wine, and we recommend checking out our online wine shop for a collection of some of the world’s best fine wines from the most popular wine making regions – all just a button away from arriving at your doorstep.
For any other fine wine related questions or queries – or if you’re interested in fine wine investment or collecting – please feel free to contact our experts at any time. We always respond promptly, and will be glad to help!
Image source: Brent Hofacker

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