What key aging characteristic causes Tawny Port to develop a brownish hue and complex, nutty flavor profile?

Answer

It is aged in wooden casks, allowing for slow evaporation and oxidation

Tawny Port’s distinctive characteristics—its evolution toward a brownish hue and the emergence of nutty, dried fruit, and caramel notes—are direct results of its aging process in wooden casks. Unlike Ruby or Vintage styles that see limited wood contact, Tawny spends extended periods aging in barrels. This continuous, slow interaction with the wood allows for gradual oxidation and evaporation of water, concentrating the flavors, softening the tannins, and developing the complex secondary and tertiary aromas that are highly valued in older expressions like 20 or 40-year Tawny Ports.

What key aging characteristic causes Tawny Port to develop a brownish hue and complex, nutty flavor profile?
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