If you’ve ever wondered why some red wines feel velvety while others leave a dry, mouth-puckering sensation, the answer is tannins. Tannins are natural compounds found in the skins, seeds, and stems of grapes. They’re also present in oak barrels used for ageing wine.
In essence, tannins give red wine structure. They create the “grip” you feel on your palate and contribute to the wine’s texture, complexity, and ability to age gracefully over time. Understanding tannins is a key step in learning how to read a wine and discover what suits your palate.
Where Do Tannins Come From?
Tannins in red wine come from a few sources:
- Grape skins and seeds: During fermentation, juice stays in contact with skins and seeds, extracting tannins along with colour and flavour.
- Stems: Some winemakers include stems during fermentation to increase tannic structure and add complexity.
- Oak barrels: Ageing wine in oak barrels adds additional tannins and influences flavour notes such as vanilla, spice, and toast.
Different grapes naturally have different tannin levels. For example, Cabernet Sauvignon is known for bold, gripping tannins, while Pinot Noir tends to be softer and more delicate.
How Tannins Affect the Taste and Texture of Wine
Tannins are often described as astringent because they interact with proteins in your saliva, creating a drying, puckering sensation. This is why highly tannic wines can feel grippy or bold.
On the other hand, low-tannin wines feel smooth, round, and approachable. But beyond texture, tannins also shape the flavour of red wines. Tannins can amplify fruit, spice, and earthy notes, and contribute to a wine’s complexity.
For beginners, tasting tannins can take some practice. Try sipping a young Cabernet Sauvignon alongside a soft Merlot. You’ll notice the difference: the Cabernet’s tannins create more grip and structure, while the Merlot feels silkier.
Tannins and Wine Ageing Potential
One of the most important roles of tannins is their influence on wine ageing. Wines with higher tannin content tend to last longer because tannins act as natural preservatives. Over time, tannins soften, allowing the wine to evolve and develop secondary and tertiary flavours like leather, tobacco, or dried fruit.
This is why structured reds like Cabernet Sauvignon, Shiraz, or premium blends are often aged before release, or cellar-worthy for years. Softer, low-tannin wines are generally meant to be enjoyed young, while bolder, high-tannin wines reward patience.
How to Choose a Wine Based on Tannin Levels
Understanding tannins can help you select wines that suit your taste:
- Soft and smooth: Pinot Noir, Merlot, Gamay
- Medium structure: Sangiovese, Zinfandel, Grenache
- Bold and grippy: Cabernet Sauvignon, Shiraz, Nebbiolo
When pairing wine with food, tannins also play a role. High-tannin reds complement rich, fatty dishes like steak or aged cheese, as the tannins interact with protein and fat, softening the perception of astringency. Lighter, low-tannin reds pair well with poultry, pasta, or vegetarian dishes.
Key Takeaways About Tannins in Red Wine
- Tannins are naturally occurring compounds from grape skins, seeds, stems, and oak.
- They create structure, grip, and influence ageing potential.
- High-tannin wines tend to age well; low-tannin wines are best consumed young.
- Tannin levels affect flavour, texture, and food pairing.
- Knowing your preferred tannin level helps you choose wines that suit your palate.
By understanding tannins in red wine, you’ll feel more confident choosing wines that match your taste, pairing them perfectly with food, and even deciding which bottles to cellar for later enjoyment.
Tannins as a Guide to Your Palate
More than just a mouthfeel, tannins are a roadmap to understanding red wine. Recognising the difference between soft, approachable wines and bold, structured bottles allows you to explore the wide world of reds with confidence.
Whether you’re drawn to silky Pinot Noir, age-worthy Cabernet Sauvignon, or spicy Shiraz, knowing how tannins work helps you make informed choices.
Explore The Wine Collective’s curated collections to find wines with the right structure for your palate.
