Based on what I've read Richard is correct. Here are some of the source documents I've found...
Documents on www.celiac.com:
Which Alcoholic Beverages are Safe?
http://www.celiac.com/st_prod.html?p_prodi...-34104341819.36Gluten-Free Alcoholic Beverages
http://www.celiac.com/st_prod.html?p_prodi...-09104362619.a2Document on www.celiac.org:
http://www.celiac.org/celiac disease-treatment.htmlThe gist of these articles is that the Gluten peptide is to large to make it through the distillation process. HOWEVER, some celiacs have still reported problems drinking distilled alcohol from grain based beverages. So, try at you own risk.
I have had no problems with Whiskey or Scotch
Mike