<<Disclaimer: Verify this information before applying it to your situation.>> Hi, after I read the discussion over GF or not GF of Negra Modelo, I called the german importer Sierra Madre in Hagen, Tel.: +49 23 31 / 63 20 83 Fax: +49 23 31 / 63 20 86, and asked him about the GF certifikate. He send me a Fax with the analysis of Dr. E.-M. Ehrenhofer-Schaefers. He used the Gegenstromelektrophorese from Gocke and Howe with which you can prove existance of Gliadin/Gluten. His result was GF!!! The ingrediences, (In Germany we have an obligation, that the ingredients must be shown on the packing.) are corn, rice and ascorbineacid. -Schaefers. Markus