What Does It Mean When A Wine Is Corked?

When a wine is described as "corked," it means the wine has been tainted by a chemical compound called TCA, or 2,4,6-trichloroanisole. This compound can develop when natural fungi in the cork come into contact with certain chlorides found in bleach or other sanitizing agents used during the cork manufacturing process. The presence of TCA in wine results in a musty, moldy smell reminiscent of damp cardboard, wet dog, or a mildewed basement, and it significantly diminishes the wine's natural aroma and flavor profile. The term "corked" does not refer to pieces of cork floating in the bottle, but rather to this specific contamination. Cork taint can affect wines sealed with natural corks, and it is estimated that a small percentage of all wines suffer from this fault. A corked wine is considered flawed and generally undrinkable, as the taint overshadows the intended characteristics of the wine, making it unpleasant to consume. Although not harmful to health, the experience of drinking corked wine is usually disappointing, especially for those anticipating the true flavors intended by the winemaker.
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How to determine a wine is corked

You can't determine if a wine is corked just by looking at it. The unpleasant odor associated with corked wine comes from TCA contamination, not merely from a damaged cork, so you'll notice the smell before you see any visual signs. If that weren't the case, restaurants and retailers wouldn't serve such flawed products in the first place. The somewhat comical image of a formally dressed server presenting a cork to an upscale diner? The guest might be sniffing it to check for TCA, attempting to identify if the wine is corked before taking a sip.

Unfortunately, there's not much that can be done once a wine is corked. If TCA is detected, the only option for the customer is to return the bottle. While a dash of salt can enhance the flavor of some red wines, corked wine is permanently spoiled. Most reputable retailers will accept returns of corked wine, as long as you haven't already consumed the unpleasant liquid.

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