I may be vacuum sealer challenged but with the home unit I have the seals or plastic itself will leak air after about a year. I'm sure some of it is having moisture on the seal but that's hard to avoid when doing any amount of wet meat.

The meat wrapped in plastic wrap then double wrapped in the plastic faced butcher paper was good for a long time. I found old forgotten stuff in the back of the freezer that I was sure couldn't be good. I was going to cook it up for dog treats and ended up eating it all myself. It was at least 4 yrs. old.

Now I use the vacuum sealer for fish in water and ground meat and the old fashioned way for the larger cuts.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli