External sealer vs. camera sealer: which one to choose?

External sealer vs. camera sealer: which one to choose?

There are two "worlds" in vacuum food packaging:

  • External sealer (edge ​​sealer / suction) : pulls air through the bag opening and seals it.

  • Chamber vacuum sealer : creates a vacuum inside a chamber and seals the bag inside.

The right choice depends on your usage pattern: occasional meal prep vs. intensive use , and whether you'll be working with liquids/sauces .

1) Difference #1: Compatible bags (and why)

External sealer → textured bags/rolls (embossed/waffle)

In external vending machines, bags with a "waffle" pattern help prevent air pockets and facilitate air extraction. FoodSaver itself explains that the pattern is designed to prevent air from becoming trapped.

Camera sealer → flat bags (soft pouches)

In the chamber, the bags tend to be smooth and transparent; however, bags for external sealers have a "mesh"/texture to channel air as it is pulled in.

✅ Simple rule:

  • If you want to use cheap, plain bags , think about cameras .

  • You will use textured rolls/bags → the outer layer is sufficient.

2) Difference #2: liquids (sauces, marinades, soups)

  • External sealer: tends to "pull" liquid into the sealing area, causing failures (which is why having a Pulse / Manual mode is so useful).

  • Chamber sealer: handles liquids better because a vacuum is created inside the chamber and the liquid doesn't "rise" in the same way.

✅ Practical tip: If you're working outdoors and want to seal moist foods, freeze the sauce 20–40 minutes beforehand (or use Pulse ) to avoid wasting bags.

3) Difference #3: Total cost (machine + consumables)

Many people buy the machine and then "feel" the cost in the supplies:

  • Externally: textured bags are usually more expensive than plain bags.

  • Camera: the camera is usually more expensive/larger, but it can reduce the cost per bag in the long run (plain bags).

4) Food safety (regardless of type)

Vacuum packaging reduces oxygen but does not replace cold . The USDA warns about risks (e.g., C. botulinum ) in vacuum-packed foods if not properly refrigerated/frozen.
For packaging at home, the NCHFP (University of Georgia) emphasizes the importance of maintaining safe temperatures and good practices.

FAQ

Is camera sealer "better" than an external sealer?
It's better for liquids and smooth bags, but it tends to be larger/more expensive. The outer one is perfect for regular household use with textured bags.

Do plain bags work in an external sealer?
In general, not so good: external sealers rely on texture/“channels” to draw out air and seal consistently.