Mr. Waterhouse said that the obnoxious, dank flavor of a “corked” wine, which usually renders it unusable even in cooking, can be removed by pouring the wine into a bowl with a sheet of plastic wrap. “It’s kind of messy, but very effective in just a few minutes,” he said. The culprit molecule in infected corks, 2,4,6-trichloroanisole, is chemically similar to polyethylene and sticks to the plastic.