I live over 80 miles from good health food and grocery stores so I will often go when I visit my parents. This weekend I went to get a few things and stayed the night and I ended up forgetting some seeds that I bought. I bought raw sunflower seeds, raw pumpkin seeds, and chia seeds. Knowing I won't be back to visit for a few months, I was wondering if these seeds can be frozen by my parents and then I could get them the next time I visit them. If so, how would I store them knowing they've been frozen before? Can I keep them out of the freezer or do I need to make sure they stay frozen until use? I bought too many for them to really be used in one meal, I bought bulk, with the most being sunflower.