<<Disclaimer: Verify this information before applying it to your situation.>> I received the response yesterday from San-J to a query I made some time ago: We do not add any gluten ingredients to our Organic Wheat Free Tamari (Gold Label) and our Organic Wheat Free Reduced Sodium Tamari (Platinum Label). The alcohol we use in them is corn derived. We do manufacture other products in our plant that contain wheat. This means there could be a slight chance of airborne contamination. We clean our lines in between running different products and we test each batch of Organic Wheat Free Tamari for the presence of gluten. If I can be of further assistance of if you need more specific information regarding our testing, please feel free to contact me. Best regards, Jennifer R. Stoltz Marketing Manager San-J International 800.446.5500 x 111 [log in to unmask] -- MJ Thomas [log in to unmask] In the beautiful Finger Lakes Wine Country of New York State! *Support summarization of posts, reply to the SENDER not the CELIAC List*