You have to get the bag perfectly flat. The slightest wrinkle will cause the seal to fail. I put a cutting board in front of my sealer so that the bag is level with the sealer.
Klose 20 x 48, 26.75" OTG, SJP, SJG, stainless hibachi w/ rotisserie, cinderblock hog cooker
(Former pits: New Braunfel's El Dorado, Stainless Performer, SJS)
Propane-free since '93
"Tending a fire is therapy." - nucornhusker
Certified IMBAS MOINK Baller!