Vacuum Sealer Not Sealing? How to Fix It

Most failed seals come down to four things: a wet or dirty seal area, wrinkles, the wrong bag, or a worn seal strip.

Fixes, in order

1. Dry the seal area. Wipe the inside of the bag mouth; moisture or grease stops the plastic fusing.
2. Smooth the bag. Wrinkles leave channels for air. Pull the bag taut across the seal bar.
3. Check the bag. Edge sealers need embossed bags; smooth bags won't seal properly.
4. Let it cool. Many sealers need a short rest between bags.
5. Inspect the seal strip. Replace the heat strip tape or gaskets if they're worn or burned.
6. Use the double seal for important bags.

Still failing?

Check your warranty, from one year (Nesco, Avid Armor) to five years limited (FoodSaver FM2100).