<<Disclaimer: Verify this information before applying it to your situation.>> Hi. I found a source on the internet which states that Charcoal Briquettes may contain wheat starch. http://www.kashrus.org/kosher/pesach/pesach2.html The starch is used to bind the briquettes. Other starches maybe used instead by some companies. I looked this up because I went to a work picnic yesturday and have been coughing up mucous since yesturday afternoon, and my right eye turned beet red about two hours after the gathering. I stood next to the grill for a good half hour because I talked to the grill man while waiting for my gluten free food to grill on a piece of foil. I believe the smoke from the briquettes is probably the reason for the extreme eye redness and the cough which started yesturday after the picnic (within an hour of the picnic). I ate only fresh fruits, vegetables, and 100% steak burger, so I did not ingest anything containing gluten. I saw a reference in the archives about the briquettes about whether the wheat could transfer to the food. The sprue-nik press said it was uncertain. However, there was no discussion on the smoke mentioned and whether this could be dangerous for celiacs. I am going to avoid going near them again. Abigail [log in to unmask]