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  • (1000) 300cc oxygen absorbers for long term food storage
  • (100) 300cc oxygen absorbers for long term food preservation
  • (50) 300cc oxygen absorbers for food preservation
  • (25) 300cc oxygen absorbers for long term food storage
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300cc Oxygen Absorbers in 50-packs

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    PackFreshUSA 5-star Amazon Review

    Click here to read our 5-star Amazon Reviews for this product

    PackFreshUSA™ 300cc Oxygen Absorbers:

    • Long-term Food Storage Guide included
    • Absorb 180-300% of their rating as a safety buffer
    • Work in mason jars and Mylar bags
    • Oxygen indicators included to insure freshness
    • Unconditional Guarantee


    • 300cc Oxygen Absorbers (in 50-packs)
    • Oxygen Indicators
    • Long-Term Food Storage Guide

    Oxygen Absorbers

    PackFreshUSA™ Oxygen Absorbers are guaranteed to absorb at least 180% of their rating, giving you a buffer of safety. Each package contains an oxygen indicator to guarantee freshness and we include our Long-Term Food Storage Guide with every purchase containing a chart to help you know how many absorbers you should be using for your project. You are always welcome to send us your questions as well!

    Easy Oxygen Absorbers Guide

    These sizes will work for ALL food types*:

    50cc for a ½ pint
    100cc for a pint
    300cc for a quart
    500cc for a gallon
    2500cc for a 5 gallon

    *Container must be full
    (All of our Mylar sets now include these amounts)

    Long-Term Food Storage Guide

    This guide is your gift from the food science professionals here at PackFreshUSA and contains knowledge you will not find anywhere else. This 3rd edition contains directions, more information and tips, plus a new section on a special process to avoid freezer-burn.

    The PackFreshUSA Promise

    We guarantee that you will receive your order through rain, sleet, or gloom of night and you will be completely confident in the security of food stored with our products or we will give you a complete refund – always!

    For FREE printables, directions and tips click here.

    Write your own product review

    Showing reviews 1-10 of 14 | Next

    1. Excellent Quality!  star rating

      Posted by D.M.M. on Jun 9th 2022

      I have purchased loads of these. They have all always been fresh and work well, as evidenced by my bags "sucking in".

    2. ok  star rating

      Posted by Gary E Courtright Sr on Mar 31st 2021


    3. Came with chart  star rating

      Posted by JOE on Mar 20th 2021

      I am new to using O2 packets and really like that they added a chart that shows how many to use per container

    4. Customer Service, Product, Value - I love it all !  star rating

      Posted by Unknown on Jan 20th 2021

      Product was as described, customer service was wonderful for me: phone and email, product cost vs ease of use make it a great product for my applications. I WILL order again.

    5. Excellent Product  star rating

      Posted by Floyd on Dec 19th 2020

      I have now used a lot of these oxygen absorbers and none have failed. Even in these pandemic times where shipping is slow and products can be hard to get. PackFresh has provided excellent service and super fast shipping.

    6. Work great  star rating

      Posted by Unknown on Sep 10th 2020

      I’ve used pack fresh oxygen absorbers for several years. They work great. Keep my food perfect

    7. Good product  star rating

      Posted by Emaline Spangler on Jul 31st 2020

      Used them to dry can rice and cornmeal in mason quart jars.
      Every jar sealed within 12 hours.

    8. When only the best will do!  star rating

      Posted by David Melamed on Mar 12th 2020

      I spent thousands on my Freeze Drier and thousands more on the food I store. Why would I want to use a cheap and un-reliable Oxygen Absorder.

      This product is top quality and more importantly I can trust it!

    9. 300 cc  star rating

      Posted by Daryl Smallwood on Aug 27th 2019

      Did just what I needed. Very confident in this product. Thanks

    10. Fabulous Product and Company!  star rating

      Posted by Chris on Jul 5th 2019

      This product performs better than expected. I use the 300s in my medium size mylar bags and the 500s in my larger bags. If you shake down loose items and tamp down fine-powdered product as you fill, just one of these babies will vacuum pack tightly. I'm impressed. And I also appreciate the company's fine service and readiness to answer questions. Happy Camper.

    Showing reviews 1-10 of 14 | Next

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    *Offer vaild for shipping to all US destinations including Alaska, Hawaii, Puerto Rico and US Territories. Not valid on wholesale orders.

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