All products are packaged without preservatives or additives.All packaging is sold by volume and not weight. All of our items are packaged in mylar bags. We suggest use of product within 3-6 months as long as it is stored properly and not exposed to liquid. Store your products in a cool, dry place away from moisture when not consuming. When moisture is added, product will reconstitute to it's natural form. All products are produced and packaged at a residential property that is exempt from state licensing and inspection per Iowa State code.