>>357953"Step 3
Do not forget to pierce packages that already sealed with air (noodles,
candy bars, granola bars, crackers) with a needle or thumbtack, They
will be sealed in the bag and this the air go out giving you a tighter seal
and maintaining its integrity"
Except that's wrong; releasing the air inside the packages will won't make
a shit of difference to the size of the vacuum sealed outer bag and in many
cases, the factory sealed food pouch is filled with inert nitrogen gas to
improve shelf life.
