My preferred material of choice for container and bottle is stainless steel and for many reasons. (goodgirlgonegreen.com)
Indeed, graphene has even been touted as being one of the best alternatives to silicon as the electronic material of choice in the future. (nanotechweb.org)
Simply fill bag with material of your choice and iron shut — no glue needed or used to make this product. (mountainroseherbs.com)