Red pepper flakes are made from a combination of cayenne, thai, serrano and red bell peppers. This spice is grown, dried and packaged and from the current growing season. We air dry our cayenne pepper for the best and freshest taste. This pepper is ground to a fine powder. I also have whole cayenne peppers dried available which is great for dishes that you want great spicy flavor with obvious presence of large bits. PLEASE SEE MY OTHER SEED AND SPICE LISTINGS. THANK YOU