How to tell if a wine has gone bad

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How to tell if a wine has gone bad
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Inspect the colour, aroma and take a small sip before pouring a full glass

Cork taint is a potential fault facing all wines sealed with natural cork, although there are rare instances where the musty taints are environmental from a winery’s cellars. A compound called halonanisole 2.4.6.-trichloronanisole can contaminate wine with musty basement aromas and flavours. When the damp/mouldy smell is pronounced, it’s easy to spot a corked wine. In smaller doses, however, it simply robs the wine of its fruity aromas and flavours, making it appear less fresh.

Oxygen can adversely affect or improve the quality of a wine at various stages during fermentation, maturation and storage . The more oxygen interacts with a wine, it will cause it to lose freshness and its fruity character. In some instances, such as mature Gran Reservas red wines from Rioja, this is a desirable and welcome character.

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