I use a Mylar liner in mine and squeeze out most as I can and then throw in the oxygen absorbers, Some people do have a vacuum tube rigged, but they all seem to use different set-ups.
Thanks, I just do not have a feel for how long an absorber will last without pulling out the atmosphere. Even receiving the absorber in the packaging bothers me. How long will they last in the packaging in which they are shipped. Prolly need to store them in a bucket that is sucked out.