1. As the filling cools, it will create a vacuum seal . 2. You can also freeze and vacuum seal pita bread. 3. These provide " no definitive way to determine if a vacuum seal is formed ." 4. The clippings are now kept in a jar with a vacuum seal . _ _ _= 5. The suits, once removed from their vacuum seal packs, are worn over a soldier's combat uniform. 6. The NMR tube cap forms a vacuum seal . 7. You can freeze them then vacuum seal them. 8. Keeran's 2-piece vacuum seal for Mason jars, which became the standard for home-canning, was immediately popular. 9. Double chamber sealers are typically used for medium-volume packaging, and also have the capability to vacuum seal liquids. 10. In 1657, he machined two 20-inch diameter hemispheres and pumped all the air out of them, locking them together with a vacuum seal .