I have asked my California friend Dan Perkins to write a regular guest blog here. He is a champion wine taster and wine connoisseur. He is also a triathelete, mountain climber--you get the picture--a true renaissance man.
Here are his astute comments to my blog of November 24.
"Cork taint or what the big boys call TCA or what the even bigger boys call trichloroanisole is a bacteria that inhabits the wine through varied means; most of which occur through affected corks but can also come from the wineries themselves or the equipment used to bottle the wine. TCA is not harmful and at low levels can be mostly unnoticed. The key is what you pointed out; the "smell."
Cork taint can be detected by a musty, "wet coat" kind of odor. Although the wine is drinkable the taste experience first goes through the nose before the tongue and a tainted wine will taste different.
Because cork taint seems to affect about 5% of all wine distributed this has proven to be a significant loss to wine makers over the years. Lately, new methods such as synthetic corks, Stevin screw caps and (my favorite) the new glass closures have been greatly embraced by the industry but with some reticence from the public.
Another thing for your readers to consider is bottle temperature. I have been to some restaurants where keeping their wines exposed in the dining room, to be used as a decoration, often spoils the taste of the wine. Especially, when they are kept near the kitchen. For optimal flavors, wine should be served between 55 and 65 degrees (lower preferably) for reds and 42-55 for whites, depending on varietal. Bottles kept out and near a kitchen can reach temps over 80 degrees. If this happens the taste will be greatly affected and ruin the purpose of pairing that nice $85 bottle of Petite Sirah with a $42 cut of lamb...
So, even if the wine isn't returnable due to winning the bad-wine lottery it is because the people storing the wine for your enjoyment simply weren't prepared for your impeccable standards! Cheers."