Top wine faults and what to look for

Oxidation

 

3-oxidation

Just like apples, wine is also susceptible to oxidation

How: As bottles age or if they are subjected to intense heat, the corks weaken which allows oxygen to get into the bottle and interact with the compounds.

What to look for: In white wine, the colour will darken to amber and then eventually brown. In red wine, the purple/red hues change to brown/brick hues.  There will also be sherry-like flavours or aldehyde/nutty characters.

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