We got to pick some purple hull peas from a friend's garden and starting shucking them tonight. The friends said that they store them unwashed in a pillow case in the freezer for about 6 months. I'm fresh out of pillow cases. Supposedly if you store them without washing them, there's no water to crystalize, and they store well. So, can't i just do the same thing in a plastic ziploc bag? What am i missing?