A chamber vacuum sealer works by creating a vacuum environment within an entire chamber, rather than just around the bag opening, to remove air and then sealing the bag.
Unlike regular vacuum sealers, a chamber vacuum sealer operates by pumping all of the air (including air inside the bag) out of the chamber at once. This process gives your item a truly airtight seal. The sealing process concludes with the machine heating the edges of the bag, which fuses the material together and prevents air from re-entering.
Here's a simple breakdown of the process:
The Chamber Vacuum Sealing Process
Chamber vacuum sealers offer a robust method for preserving food and other items. The core mechanism involves two main steps: creating a vacuum and sealing the bag.
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Placing the Item:
- The item to be sealed is placed inside a vacuum bag.
- The bag is then laid flat inside the machine's chamber, with the open end positioned over the sealing bar.
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Creating the Vacuum:
- The lid of the chamber is closed, creating an airtight space.
- The machine begins to pump air out of the entire chamber. As the air pressure drops equally both inside and outside the bag, liquids don't boil or get sucked out, making them ideal for sealing soups, sauces, and marinades.
- According to the reference, this action pumps all of the air (including air inside the bag) out of the chamber at once, giving your item a truly airtight seal.
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Sealing the Bag:
- Once the desired vacuum level is reached within the chamber, the sealing bar activates.
- The sealing bar heats up and presses the two sides of the bag's open end together.
- The reference states that the process ends with the machine heating the edges to fuse the bag and prevent air from coming inside. This welding action creates a strong, permanent seal.
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Restoring Pressure:
- After the seal is made, the chamber is vented, and air is allowed back in.
- As the pressure inside the chamber equalizes with the outside air, the bag is pressed tightly around the contents.
This method effectively removes significantly more air than edge-style vacuum sealers, leading to longer preservation times and the ability to seal liquids without mess.
