[pct-l] Nuts/Granola in mail drops

[Eric Payne]

I'm having trouble deciding how to handle shipping nuts for trail mix, and
granola for breakfast in my mail drops.  Nuts are known for their weak shelf
life, but I guess they can last a while if they are sealed in tins, but not
when bought in bulk and stored in plastic baggies?  Granola is even
trickier.  In Ashland when I buy tons of bulk granola for the rest of OR,
will this granola stay fresh while out hiking and it's waiting in a PO for
me?  Everytime I read about granola's shelf life, they always say seal in
airproof container for no more than a week.  I know I've had granola stay
fine for nearly 2 weeks, but I dunno about a month.  I can keep a huge stash
of granola in my parents freezer for the state of CA to ship to me, but I
can't have my OR/WA maildrop food frozen.  Does anyone have experience in
this area?