Tag Archives: vacuum chamber

Not all Bags are Created Equal (Quick Lesson on OTR)

Vacuum packaging is a method of packaging that removes air from the package prior to sealing the package.  Many food industries (meat, cheese, seafood) use vacuum packaging in order to extend the shelf life of these products.

Once air has been eliminated from the package, there must be an adequate oxygen barrier and seal integrity to keep a low oxygen concentration inside the bag. Otherwise, the driving force created by the oxygen partial pressure differences (21% outside the bag and 0-2% inside the bag) will cause oxygen to re-enter the bag.

OTR (Oxygen Transfer Rates) is the amount of oxygen that passes through a defined area of film over 24 hours.  This is where the importance of your bag comes in.  See our chart below of various OTR rates for films.  The lower the OTR, the better the barrier.

OTR Chart_Logo

If you are vacuum sealing a bag with a high OTR, this defeats the purpose of vacuum sealing since the bag will easily allow oxygen right back in the bag.  In order to properly vacuum seal your bag, you must choose a bag with a low OTR.

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The Best Little Vacuum Chamber That Could

If your small home vacuum sealer is just not meeting your needs, this chamber vacuum sealer is the perfect upgrade.  The TC-Series vacuum sealer is an easy to use table top unit that can vacuum seal your product:  cheese, nuts, dried fruit, and much more!  Just place your item in the chamber, close the lid and 30 seconds later..voila!  A perfectly vacuum sealed product with a beautiful two line seal.  We also carry options such as gas flush and 220V.

TC280F

FEATURES

  • Compact, easily fits most spaces
  • Stainless steel construction
  • Durable aluminum steel bar
  • Acrylic plastic lid
  • Pump manufactured and designed in Italy (TC-420 series – Busch pump)
  • Custom features available – gas flush, sensor control, 220V
  • ETL, UL, NSF, CE, and CSA Certified