Top wine faults and what to look for

Heat damage

Good for our Vitamin A, but sunlight and high heat is perilous to wine

How: Happens as a result of of heat unstable proteins in the wine which denature and precipitate as the wine is warmed – above 80F (26C) – and then literally starts to cook with irreversible damage.

What to look for: Cloudy wines. In extreme cases, the cap has been pushed off the top of the bottle and the bottle has leaked. Corks that have expanded in size or are cracked. The wine will taste very definitely off, or burnt.  

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