To Krasisas!

I visited Kythera many years ago. I have never, before nor since, drunk such splendid wine. I confess I drank a great deal in the taverna that evening, much more than I resonably should have. And yet, the next day, I awoke without any suggestion of the excess of the previous evening. Being scientifically minded, I repeated the experiment twice more - both times with the same result!! What is the secret of Kytheran wine?