Everything You Need to Know About Tannins in Wine

McKenzie Hagan | February 24, 2020

Chances are, even if you don’t know much about them, you have an opinion about tannins in wine.

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If you’re drinking Usual wine, the answer is 1.  For all other wines, it varies, so read on!

Let us explain.

Why do you love your favorite bottle? Is it merely the flavor or the aroma? Maybe it’s the memory of your very first glass that pulls you back to it every time. Or do you enjoy the complexity, the body, the way it leaves your mouth feeling after a sip?

For most wine lovers, a great bottle of wine goes deeper than flavor — it’s about how it feels on the palate. Tannins play a large part in this.

The level of tannins in wine could even be the reason you love a particular variety (or never want to be in the same room with it again).

What Are Tannins?

Tannins are natural compounds that are found in plants. They occur in certain fruits, tree bark, roots, leaves, and of course, wine.

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Bitter in flavor, they leave a drying sensation on the tongue. Black tea is an excellent example of high-tannin food. When you drink it, you’re hit with an intense astringent flavor and left with a sticky sensation on your tongue and teeth.

Other high-tannin food and drink include:

Dark chocolate
Pomegranate
Grape juice
Quince
Cinnamon
Cloves

In terms of wine, tannins are in grape skins, pips, and stems. While there are tannins in wine of all varieties, red wine is often more tannic than white or rosé since grape skins are left on during the winemaking process.

You can usually tell if a wine will be tannic even before tasting it. If the wine is red, chances are it’ll be higher in tannins. However, some white wines such as chardonnay can be higher in tannins.

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Upon first sip, note how the wine feels on your tongue, paying particular attention to the middle section. If your tongue and teeth feel dry, chances are your wine is a higher tannin variety.

Why Do Winemakers Love Tannins?

Some winemakers purposely add tannin powder into their wines to raise the tannin level. Why? Because tannins act as a natural antioxidant, which protects the wine from bacteria.

As a result, these powders help the wine to age successfully, taking on complexity in the process. Still, tannin powders are unnecessary additives and are usually only used in large-batch, low-quality winemaking. At Usual Wines, we favor small-batch farming, with no sugar or chemical additives, and very little intervention during the aging process.

When a high-tannin wine is aged it often takes on a much smoother texture, which is far less bitter than a younger wine of the same grape. The wine becomes complex and elegant.

Which Wines Have High Tannins?

If you love dark chocolate, black tea, and sour pomegranate, chances are you could also be a fan of wines with high tannins. In this case, look out for the following varieties:

Cabernet Sauvignon: This wine is synonymous with tannins. The illegitimate love child of Cabernet Franc and Sauvignon Blanc, this beloved grape is grown internationally. It’s robust, heavy, highly acidic, and pairs fabulously with red meat and rich cheeses.

Shiraz or Syrah: No matter how you spell it, this is another high-tannin wine. Syrah is full-bodied, deeply dark, and feels quite heavy in the mouth. It has poignant flavors of berries, tobacco, and even smoky savory notes.

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Nebbiolo: This is a lesser-known grape hailing from Italy. Although as pale as its low-tannin distant cousin Pinot Noir (don’t worry, more on that one later), Nebbiolo is intensely tannic. It’s a bold and surprisingly affordable Italian grape, which is always a plus.

The Health Benefits of Tannins

As well as providing exceptional texture and intensity, tannins are also celebrated for their health benefits. Studies have shown that wines higher in tannins are healthier for the heart, and countries consuming more of these wines are enjoying longer lives.

London-based scientist Roger Corder has long said he believes that traditional winemaking production methods, which are commonly used in Sardinia and Southern France, may have a strong connection to the overall well-being and longevity of residents in those regions. That’s because traditional winemaking methods support these beneficial compounds, known as procyanidins (aka condensed tannins).

In an interview some years back, Corder proclaimed, “Wine drinkers who hope to be rewarded with the maximum protection from heart disease should start seeking out wines with firmer tannins.”

Do Tannins Cause Hangovers?

While there isn’t a science-backed connection between tannins and hangovers, many people feel they suffer from harsher hangovers after indulging in high-tannin wines the night before. But there is little to no evidence that this is true.

Still, there’s some research suggesting that some people have tannin sensitivity. Tannin sensitivity can cause headaches, migraines, and stomach pains.

Some attribute tannin sensitivity and tannin headaches to poor winemaking techniques and suggest good-quality wines with high tannins shouldn’t leave you feeling worse for wear.

If you do suspect tannins may be having an adverse effect on you, try sourcing a variety with a lower amount of tannins.

Wines With Low Tannins

If you prefer your wine a little smoother and not so biting, then you may want to opt for one that’s low in tannins. Obvious choices would include unoaked white wines, such as:

Sauvignon Blanc: This highly aromatic wine is marked by its fresh and zingy taste. It often has notes of passionfruit and fresh-cut grass, and pairs nicely with fish and pasta dishes.

Riesling: This highly aromatic wine is marked by its fresh and zingy taste. It often has notes of passionfruit and fresh-cut grass, and pairs nicely with fish and pasta dishes.

While these white wines are a go-to for many, if you’re a red wine lover through and through, here are several low-tannin red wines to get you going:

Pinot Noir: This classic red is internationally adored for its complex flavors and light texture. It has thin grape skins, making it naturally lower in tannins.

Grenache: This full-bodied wine is high in alcohol and has an array of red fruit and cherry flavors. It’s a medium-tannin wine, so while it’s not as low as Pinot Noir, it's a good option for those trying to avoid intense tannic flavors.

Tannins in Wine: It’s a Matter of Taste

Whether you love wine with intense character, or you prefer sticking to something lighter, tannins play a large part in your overall enjoyment of wine.

As a general rule, if you want to avoid firm tannins, choose white wines, rosés, and red wines with thin skins, such as Pinot Noir.

While some people may be sensitive to tannins, these naturally occurring compounds are nothing to be afraid of. So, go ahead and grab a glass of wine and discover what tantalizes your palate. As long as you're having fun, you're doing it right