Calculate the correct amount of tannin powder to add to your wine or cider. Tannins provide structure, mouthfeel, and aging potential while balancing sweetness and acidity.

🧪 Understanding Tannins

What Are Tannins?

Tannins are polyphenolic compounds found in grape skins, seeds, stems, and wood barrels. They provide structure, complexity, and aging potential to wine and cider. Tannins create the dry, astringent sensation in your mouth and contribute to the overall "body" of the beverage.

Types of Tannins:

  • FT Rouge: Soft, elegant tannins ideal for red wines. Derived from oak and grapes. Adds silky mouthfeel.
  • Wine Tannin Powder: General-purpose blend, works for most applications. Neutral flavor profile.
  • Oak Tannin: Extracted from oak barrels. Adds structure plus subtle vanilla and oak notes.
  • Grape Seed Tannin: More astringent and firm. Good for wines needing substantial structure.
  • Black Tea: Budget-friendly option. Boil strong tea and add to wine. Less refined but functional.
  • Skin Tannins: Softer, more subtle than seed tannins. Professional winemakers use these for finesse.

Why Add Tannins?

  • Body & Structure: Prevents thin, watery mouthfeel in low-tannin wines and ciders
  • Aging Potential: Tannins act as antioxidants, allowing wine to age gracefully
  • Balance: Counteracts excessive sweetness or fruitiness
  • Mouthfeel: Creates dryness and complexity on the palate
  • Clarification: Tannins help proteins precipitate, aiding in fining and clarity
  • Flavor Complexity: Adds layers beyond simple fruit flavors

When to Add Tannins:

  • Primary Fermentation: For maximum integration (red wines)
  • Post-Fermentation: Most common timing for controlled additions
  • Before Bottling: Final adjustments after tasting
  • Aging: Can add during barrel aging for oak tannins
  • Avoid During Active Fermentation: May stress yeast if added mid-ferment

Typical Tannin Levels by Style:

  • Red Wines: 1,000-4,000 ppm (heavy tannic structure)
  • White Wines: 200-400 ppm (light, crisp)
  • Rosé: 400-800 ppm (light-medium body)
  • Fruit Wines: 300-600 ppm (varies by fruit)
  • Cider: 100-300 ppm (minimal tannins)
  • Mead: 150-400 ppm (honey has no tannins naturally)

Signs You Need Tannins:

  • Wine tastes flat, watery, or overly sweet
  • No "grip" or structure on the palate
  • Fruit flavors dominate with no balance
  • Wine seems like it won't age well
  • Lacking complexity or depth
  • Too thin or light-bodied for the style

Signs You Have Too Much Tannin:

  • Excessively dry, puckering sensation
  • Bitter or astringent finish
  • Unpleasant mouth-coating feel
  • Harsh, unripe flavors
  • Wine tastes "green" or vegetal

Pro Tips:

  • Start Small: Add 50% of calculated amount, taste, adjust. You can always add more!
  • Dissolve First: Mix tannin powder in warm water before adding to avoid clumping
  • Blend Thoroughly: Stir well to distribute evenly
  • Wait to Judge: Tannins need 1-2 weeks to integrate before final assessment
  • Trial Batches: Test on small samples (100ml) before treating entire batch
  • Temperature Matters: Warm wine accepts tannins more readily
  • Oak Alternative: Oak chips/spirals add tannins naturally during aging
  • Tannin + Acid: Often used together for complete balance