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Oxygen Absorbers - 300cc

Oxygen Absorbers - 300cc
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Fresherpack Fresherpack Quality Vacuum Sealers and Accessories

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Oxygen absorbers remove oxygen from the air, when one of these 300cc oxygen absorbers is placed inside one of our foil bags and sealed, the oxygen within the bag is removed. The capacity of oxygen removal of these oxygen absorbers matches the 20x30cm, 25x35cm & 30x34cm foil bags we sell, one in each bag. For our extra large foil bags 50x75cm 2 to 3 of these oxygen absorbers are needed depending on how dense what you are sealing and how full the bag is.

Actual size of the 300cc absorbers are: 4.8cm x 6.8cm

Packs of 10, 20, 40 are from OxyFree and have OxyEyes in each factory sealed pack, USA brand.

Packs of 100 are for Ageless (Mitsubishi Japan), as standard there is no OxyEye, this is normal for this manufacturer but are factory sealed in a large master factory sealed vacuum bag.

Packs of 150 are O2O brand and have an OxyEye in each factory sealed pack. This brand of oxgyen absorbers are used in the M&S beef jerky packs.


After opening the pack and using what you need straight away, the remainder should be kept in a airtight mason jar, vacuum sealed or the bag they come in heat sealed. This allows you to store the remaining oxygen absorber sachets without having to worry about them being exposed to the oxygen in the air once you have opened the vacuum sealed pack.

If you prefer an OxyEye factory sealed with your oxygen absorbers please check the pack sizes we offer from the dropdown menu to select, next to the 'Buy Now' button.


Q. For a 300cc oxygen absorber how much oxygen is absorbed?

A. 300cc of oxygen, it is worth remembering our air
is just under 21% oxygen. A larger capacity oxygen absorber is fine to be used than needed, it will just hold a reserve of extra capacity for example if the bag you are storing is briefly opened and closed.

Q. What is an OxyEye

A. An OxyEye is a colour changing sachet packed inside the master vacuum sealed bag along with the oxygen absorbers, the OxyEye is pink when the oxygen absorbers have not been exposed to air (oxygen) and are ready to use. The OxyEye turns blue/purple if the master vacuum sealed bag has been damaged and air (oxygen) has then already used up the oxygen absorbers capacity. So in summary the OxyEye is a good indicator of the oxygen absorbers freshness.

  All oxygen absorbers we supply are foodgrade so are safe to be in contact with food and of a great quality.


Our oxygen absorbers are of the highest quality available, they are not the cheaper paper variety that are widely available, they are made of Tyvek type plastic which comprises of flashspun high density polyethylene fibres. This higher quality oxygen absorber offers much greater protection, for example if the product you are sealing has any fat content the plastic does not degrade and allow transfer through, unlike the paper encased equivalent. (Although it is not recommended using Foil bags with products that have high fat/moisture levels.)

Oxygen Absorbers remove oxygen from the Mylar foil bags to below 0.01%. They work by when exposed to air, the iron in the sachet quickly starts to absorb the oxygen and breaks it down into harmless iron-oxide which is safely contained in the packet and does not contaminate the food. Each of these 300cc oxygen absorber is designed to treat 10kg void of product and are well over specified for their application.  It is normal for a partial vacuum to be created within 24 hours of the oxygen absorbers being sealed within the Mylar bag, as the 20% oxygen in the air inside the Mylar bag is removed. 

Benefits of Oxygen Absorbers:

    * Greatly prolongs product shelf life

    * Prevents growth of insects, harmful organisms, including molds &

      aerobic pathogens

     * Eliminates the need for additives such as sulphur dioxide or benzoates etc.

  Need a larger quantity? We hold large stocks and ship quickly, drop us a line for a quote.

Do you own this product? Why not Write a Review

Rating: 5 Star Rating Reviewer: Mark H
“Along with the mylar bags i also got these. Again the quality is there. Would recommend and will be back for more soon. Mark Harris.”
Oxygen Absorbers - 50cc

Oxygen Absorbers - 50cc

Average user rating

Quality Oxygen Absorbers - 50cc usually used with our 12x20cm mylar bag to offer a long term storage solution. Factory sealed packs with OxyEye. Foodgrade.

Oxygen Absorbers - 2000cc

Oxygen Absorbers - 2000cc

Average user rating

2000cc oxygen absorbers these are the biggest capacity available and are desgined to work with our 50cm x75cm (5 gallon) large mylar bags. Just use one of these for each bag. They can also be used in other applications.