[pct-l] Vacuuum sealed bags

I have an idea that I would like present to see if anyone has had experience

with, or an opinion about.  I am considering packing my resupply food in a 
vacuum sealed bag. They sell home versions of a machine which sucks all the 
air out of a plastic bag and seals it with a pretty tight vacuum.  My 
original reason for considering this was to extend the shelf life on the 
food. Then it occurred to me that a heavy duty vacuum sealed bag might be 
"invisible" to a bear's nose.  One could seal three or four days provisions 
at a time, and if indeed they become invisible you could feel secure keeping

them in your pack close by, while you hung your open provisions.  I realize 
this system would be impractical for a long thru hike, but I am planning for

the bear infested JMT this summer and would love to avoid the weight of a 
bear canister and still have some peace of mind about not having to do
battle 
with bears.  Any thoughts?

Mike
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