Foshan Weller Moisture Proof Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of long term food storage oxygen absorbers in China. If you're going to wholesale high quality long term food storage oxygen absorbers, welcome to get free sample and discount information from our factory. We also accept customized orders.

Long Term Food Storage Oxygen Absorbers

Noted: We can custom for specific application. Accept OEM and ODM orders.

Specification	Description
Product Type	Long Term Food Storage Oxygen Absorbers
Size Variants	50cc, 100cc, 300cc, 500cc, 1000cc, 2000cc (depending on storage volume needs)
Oxygen Absorption Capacity	Varies by size
Material Composition	Iron powder, salt, and activated carbon encased in a breathable pouch
Shelf Life	1-3 years (if unopened and stored properly in a cool, dry environment)
Working Environment	Effective in sealed containers with <10% residual air
Operational Temperature	0°C to 50°C (optimal performance in room temperature conditions)
Applications	Dry grains, dehydrated food, dried fruits, spices, and other non-liquid items
Packaging	Individually sealed or vacuum-packed to preserve quality before use

Main Function

Our long term food storage oxygen absorbers are designed to remove oxygen from sealed storage containers, reducing oxygen levels to a very low concentration. This helps prevent oxidation, spoilage, and inhibits the growth of bacteria, mold, and other microorganisms. They are ideal for preserving dry and non-liquid foods like grains, dehydrated meals, and dried fruits, ensuring long-term freshness, nutrient retention, and flavor stability.

Absorption Capacity

Oxygen Absorber Size (cc)	Recommended Usage	Oxygen Removed	Container Volume (Approx.)
100cc	Small containers, such as jars	from 21% to <0.01%	1 quart (0.946 liters)
300cc	Medium containers	from 21% to <0.01%	1 gallon (3.785 liters)
500cc	Large containers or heavy-duty storage	from 21% to <0.01%	1-2 gallons (3.785-7.57 liters)
1000cc	Extra-large containers or bulk storage	from 21% to <0.01%	5 gallons (18.93 liters)

Long Term Usage

Our long term food storage oxygen absorbers can continue to work in a well-sealed environment until their oxygen absorption capacity reaches its limit. They will quickly start to absorb oxygen after use. Within 24-48 hours, they can reduce oxygen to the target level (less than 0.01%). If the package is sealed well, their effect can last for many years until the container is opened or the seal is broken. It should be noted that when using, make sure the package is well sealed and avoid exposing it to air for too long to reduce its oxygen absorption capacity.

Applications

These products are suitable for use in long-term food storage of low-moisture foods, such as grains, flours, dried fruits, dehydrated vegetables, jerky, and coffee beans. These foods are prone to oxidation, spoilage, loss of flavor, or pest infestation due to exposure to oxygen. However, these long term food storage oxygen absorbers are not suitable for high-moisture or high-fat foods, as these can promote anaerobic bacterial growth in low-oxygen environments.

Safety

These long term food storage oxygen absorbers are safe. The internal materials will not come into direct contact with food. They have no bad effect on food when used correctly. Just make sure the outer packaging is intact and avoid breakage or leakage. In addition, they are made of harmless materials. They have less impact on the environment. They can be safely discarded after use. However, we recommend that they should be disposed of according to local garbage classification regulations.

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About Us

Foshan Weller Moisture-Proof Technology Co., Ltd. was established in 2009. We are a professional manufacturer and supplier in China, with an factory of over 8,000 square meters.

Product Range	moisture-proof, mildew-proof, odor-proof and rust-proof products.
Applications	designed for residential, commercial and industrial use. used for product packaging, transportation, and warehousing in different industries.
Service	Accept wholesale, OEM, ODM orders; Provide custom solutions.
Certifications	SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI.

Product Details and Summary

Product Type	Oxygen Absorbers
Main Ingredients	iron powder, salt, activated carbon, etc.
Active Ingredient	food-grade iron powder (>95%)
Main Function	It can remove oxygen from the packaging environment through chemical reactions.
Applicable Environment	Need to be used in a sealed environment; suitable for scenes that need to prevent oxidation.
Specifications	20CC-4000CC; or per customer requirement
Oxygen Absorption Capacity	It will vary according to different specifications.
Reaction Speed	Reduce O₂ to ≤0.01% within 4-8 hours (in sealed packaging)
Working Temperature Range	-20°C to 60°C
Humidity Requirements	Between 35% and 85% relative humidity
Safety	Non-toxic material, harmless to the stored items and human health. Not edible. Avoid direct contact with the contents.
Environmental Protection	Biodegradable. No harmful residue. Green and pollution-free.
Shelf Life	1-2 years if it is stored correctly
Packaging	Made of high barrier material; sealed design.
Storage Conditions	Avoid high temperature, high humidity and exposure to oxygen, to prevent premature failure.
Certifications	SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI.