A wine is corked when it has been tainted by a chemical fault, usually TCA , which can make it smell and taste musty, like wet cardboard, damp basement, or moldy newspaper. It does not mean there is cork floating in the wine.

Quick Scoop

  • Cause: contamination related to cork, typically TCA.
  • Common signs: muted fruit, musty smell, damp cardboard, mold, or old newspaper.
  • Important: a corked wine is usually unpleasant, but it is generally not considered a health risk.

What it tastes like

A corked wine often loses its fresh fruit character and tastes dull or flat, with the aroma dominated by musty, earthy, or “wet dog” notes. Some sources note that the defect can be subtle, so the wine may just seem oddly lifeless rather than obviously bad.

What to do

If you think a bottle is corked, try a small taste and let it breathe briefly; if the off-flavors remain, the bottle is likely faulty. In practice, the usual fix is simply to return or replace the bottle, since the taint itself can’t be removed.

If you want, I can also give you a 1-minute checklist for spotting corked wine at home.