Natural Wine Corks Help a Wine to Age but Can Also Lead to Oxidation

Over the years, I’ve had my share of wines go bad even with proper storage in a wine refrigerator that’s in a dark location. These were medium-bodied California red wines that were 7-10 years old and I had expected them to hold up well. But, upon pulling the cork and pouring a glass, it was immediately obvious by the brown-orange hue and the nutty smell and taste that they were oxidized.

It’s always greatly disappointing to have a bottle go bad and have to dump it. But why?

During some recent reading, I was again reminded that natural corks in wine bottles allow a tiny fraction of oxygen through them - this actually helps a wine age. But, what I hadn’t appreciated was that a natural wine cork can actually allow enough oxygen through it in two to three years to breakdown the sulfites that are added to wines to prevent a wine from oxidizing!

It’s often said, and I’ll repeat it again, most wines are not meant for aging. And, I’ve proved that to myself several times. So, when you purchase nice bottle of red wine, my recommendation is to enjoy it within a year or two if properly stored in a wine refrigerator that’s in a dark location. Beyond that you can run into trouble. Cheers!