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| The Wine Rack A to Z: "O" |
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Oak
A type of hardwood commonly used for building wine barrels. American oak has a distinctive, bourbon-like flavour but French oak flavour is much more subtle. Both types of oak barrels contribute tannin and vanilla flavours to wines during aging. |
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Oaky
Excessive oak flavour in a wine. |
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Oenology
The study of wine and winemaking. |
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Off flavours
A tasting term used to describe undesirable flavours perceived by the mouth. |
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Off-dry
A tasting term used to describe wines that are very slightly sweet. |
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Oxidised
A term to describe a wine that has been spoiled by exposure to oxygen. During oxidation, wine loses its fruitiness and takes on a darker brownish colour and a sherry-like nose. |
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