<<Disclaimer: Verify this information before applying it to your situation.>> We recently returned from a trip to St. Croix, where, among other things, we toured the Cruzan Rum Factory. Rum is made from molasses and yeast and is gluten free. However, our guide told us that they get the barrels that they age the rum in from the U.S. They are barrels that were previously used by a whisky manufacturer, who uses them just once. Since the barrels are still usable, the Cruzan Rum Factory buys them and uses them six more times before they are recycled into planters and such. So, if you find that you have an unexpected reaction to rum, or perhaps other alcoholic beverages that are supposed to be gf, perhaps it is coming from gluten that is being absorbed from the aging barrels. Disclaimer: I have no idea if gluten can actually be absorbed this way. I am just offering this as a possible cause for a frustrating unexplained reaction. Kathy Pittsburgh, PA