What Is Wine Tannin Used For In Winemaking?

Wine tannins are a versatile tool in winemaking, helping with structure, color stability, and aging potential. This guide explains what wine tannins are, why you might use them, and how to add them effectively to both red and white wines.

What is wine tannin?

• Wine tannins are natural polyphenols derived from grape skins, seeds, and sometimes added tannin products. They contribute to mouthfeel, astringency, and the perception of structure in wine.
• They can also help with color stabilization and, in some cases, antioxidant protection during aging.

Why use wine tannin?

• Enhance structure and mouthfeel: Tannins add grip and aging potential, especially in lighter wines that need more backbone.
• Color stabilization: In red wines, tannins can interact with anthocyanins to help retain color during aging.
• Aging stability: Tannins can contribute to slower oxidation and better development over time.
• Balance and length: Proper tannin levels help balance sweetness, acidity, and fruit flavors, improving overall balance and finish.

When to use wine tannin

• During or after malolactic fermentation: Add tannin to enhance structure and aging potential in certain blends.
• For white wines needing texture: Small amounts can add perceived body without imparting heavy color.
• To adjust late-stage balance: If a wine tastes flabby or lacks mouthfeel, a measured tannin addition can help.

How to use wine tannin (dosage and timing)

• Follow the product label: Tannin products vary in potency and recommended dosage. Always start with the label guidance.
• General approach: Dissolve the tannin in a small amount of must or water, then gradually blend into the wine. Add incrementally and sample to avoid over-tannining.
• Timing: Tannins can be added during or just after fermentation, depending on the style you’re targeting and the specific product you’re using.
• Compatibility: Tannins pair well with other stabilizers and aging enhancers. Test a small portion if you’re combining multiple additives.

Practical tips for beginners

• Start light: Begin with a conservative dose and increase gradually based on taste and color development.
• Mix thoroughly: Ensure even distribution by dissolving the tannin in a little liquid before adding to the main batch.
• Take notes: Record the dose, timing, and the resulting mouthfeel and color to guide future batches.
• Monitor impact on aroma: Some tannins may subtly affect aroma; sample and adjust accordingly.

Where to buy wine tannin (BrewCo)

• Wine Tannin 50g (recommended starting point): https://brewco.uk/products/wine-tannin-50grm?_pos=1&_sid=91ddccc04&_ss=r

Final thoughts

• Wine tannins are a valuable tool for adding structure, color stability, and aging potential to both red and white wines when used thoughtfully and in small increments.
• Always start with the label’s guidance, test on a small scale, and adjust based on your fruit, batch size, and aging goals.