because Wild Rice is a common item here in Minnesota i cook and then dry it in a dehydrator.put away in glass jars it lasts for years.i have some that is at least 5 years in the jars an it's like the day it was put in.i zip locks put away in a grub bag for a two week canoe trip it's still good but maybe busted up a bit.
brought back unused i've taken it out again a year later with no change.the stuff is like a rock until it's cooked,i add it to dry soup mix's to fill them out.
someone told me wild rice is not real rice but it must hold true for the real stuff.