Hey, Kozmo. Caking with powders and blends can happen if there is any moisture in the least, even humidity. Be sure you store your powders and blends in airtight containers. Loss of Aroma: New crushed purple pepper and chili flakes have a distinct aroma when you open up their container. https://red-yunnan-chili-pepper-r29851.blogtov.com/11325721/details-fiction-and-red-chili-pepper-crushed-mixed-with-seeds