remove air from freezer bags without a vacuum sealer
If you have a vacuum
sealer, you can definitely package your freezer meals as well
as meat to prevent freezer burn (since air is what causes
freezer burn on food).
out as much air as possible then zip the freezer bag nearly
all the way. Then insert a straw (preferably a clear one)
and suck the straw to get the last bit of air out. Be careful
not to suck up any sauces or juices! Then quickly remove the
straw and seal the last bit of the zip on the plastic bag.