<<Disclaimer: Verify this information before applying it to your situation.>> >Wine is not safe because the yeast used in fermenting the wine may contain >gluten. Best to take grape juice unless you know the brand of wine used is >GF. This must be a misunderstanding. The yeast that ferments wine grows naturally on the grapes, it is not added by the vintner. During the prohibition people bought grape juice, which had all its yeast bacteria killed by pasteurization, and made wine by adding sugar and yeast, but this is not a respectable way of making wine. Sylvia in Ithaca, NY