Thanks both for replying.
Mike, I thought it might be something like that and you confirmed it.
Balsamico di Modena, Feta, Champagne etc. come to mind.
Please remember I use a BoP faciliy, when replying to my questions.
"Drink wine, and you will sleep well. Sleep, and you will not sin. Avoid sin, and you will be saved. Ergo, drink wine and be saved."
What have I done so far?