Amazon is starting a new policy after August 5, 2022. After that date, they will no longer allow sellers to sell Mylar storage bags. They will allow see through "Mylar" bags of clear or colored plastic (not Mylar). Apparently, some people use the bags to hide drugs, while 99.9999% use them to legitimately store food long term in case of a disaster, food shortages, or for backpacking (Mylar blocks food scents when traveling in bear country). Not sure if this is a new law they are trying to comply with or if they are just trying to cover their butts from liability, but if you want to preserve a bucket of beans, rice, etc. for long term storage, this might make that harder to do very soon.