I read this quote recently from Aldo Sohm, Sommelier at Le Bernardin and thought you might find it interesting:
“A winemaker I know once did a test to see how plastic corks affect a wines flavor. He filled empty wine bottles with water, put plastic corks in them and stored them in the cellar. After 6 months, certain bottles tasted like a Barbie doll – and those were the best ones!”