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Phenolics

• Phenolics are compounds that have a phenol as their base unit.
  
  
• Phenolics are tannins extracted from skins, seeds and stalks
  
  
• Phenolics are colour compounds or pigments found abundantly in red grape skins and are called anthocyanins
  
  
• Phenolics are flavour compounds.
  
  
• Phenolics are also extracted from oak barrels.
  
  
• Phenolics join together to form large molecules (polymerisation), incorporating red pigment phenolics and also SO₂, forming increasingly higher molecular weight (heavier) polymers, that finally deposit out of solution (part of aging, red wine deposits).