I would wrap in aluminum foil twice, then put in a gallon size freezer bag, squish it to be sure all of the air is out and freeze themThis way they will keep for a long timeThey should be o.kin any kind of sealed container, a jar with a tight lid or a plastic container, like Tupperware-an expensive line of sealed containers) or another good quality sealed plastic containerAfter putting lid on the container burp it, meaning lift a small spot, push down on the lid to remove any excess air, you will hear a little whoosh sound and reseal immediatelyThis is all I know to tell youThese type mints since individually wrapped should keep well.
