Why should highly structured and complex Vintage Port generally be avoided when crafting a Portonic cocktail?

Answer

It is prized and complex, best enjoyed undiluted to convey its long bottle development.

Vintage Port represents the pinnacle of quality, sourced from the best grapes of a single, declared year, and is intended for long-term bottle aging where complex tertiary flavors develop over decades. Because of this inherent complexity, deep structure, and powerful tannins, mixing it with tonic water or diluting it is generally discouraged by purists and connoisseurs. The goal when drinking Vintage Port is to experience the full impact of its maturation and dark fruit character when sipped neat, often paired with blue cheese, rather than masking its structure in a light, refreshing mixed drink.

Why should highly structured and complex Vintage Port generally be avoided when crafting a Portonic cocktail?
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