I'm making one of the cook-off chili recipes that calls for powdered Ancho chili powder and powdered Pasillo chili powder. I finally found them both at a local Mexican grocery store. I just went to start the recipe and noticed on the back of each package it notes that the chilis were processed in a plant that also processes dry shrimp. We are serving this tonight to some friends who are allergic to shrimp. I plan on making sure they know the story, but does anyone know if these spices could cause a food allergy reaction?