After cooking, let cool then shell all the meat as stated above. Put desired amount in vacuum bag with a rolled up paper towl just below the seal to stop the juice from getting into your machine.
Then double seal the end.
Then I might just be crazy but I always place the sealed bag inside another and double seal both ends just to make sure.
It's extra work but think of the time you spent getting them.
Taste perfect at your super bowl party.