...i don't know where on this site to find a tutorial but i keep my seeds in those things you use to organize your pills, ...you know, for the week with an individual lidded container for each day of the week.
...anyway, i keep the seeds in those containers and then i put those containers into a fabric bag, probably not necessary except that i put a few dessicant packs in the bag, ...then i put that bag into a plastic bin and then i bury it under some uncooked rice after which i put a lid on it and then i keep it in a crisper drawer at the bottom of my fridge.
it's important to keep the seeds dry and if anyone looked in that drawer of my fridge all they would see is a container of rice, ...nothing to see there.
...i've popped beans that i've kept this way for more than 3 years.
peace, bozo