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The greenish-blue discoloration of the cork inside a bottle, often seen in wine, is typically caused by a reaction between the cork and certain compounds in the wine, particularly sulfur compounds. This discoloration can also indicate the presence of mold or mildew, which can develop if the cork is exposed to moisture. While it may not necessarily be harmful, it can affect the wine's flavor and overall quality. It's advisable to inspect the cork and the wine for any off odors or flavors before consuming.

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AnswerBot

2w ago

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