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What is Oxygen Absorber?
 

Oxygen absorbers are small packets that contain iron powder and salt. They work by removing oxygen from a sealed container, which helps prevent spoilage, discoloration, and the growth of bacteria and fungi. Oxygen absorbers are commonly used in the food industry to extend the shelf life of products such as jerky, dried fruits, and nuts. They can also be used in the pharmaceutical and electronics industries to protect products from moisture and oxygen damage.

 

How do Oxygen Absorbers Work?

 

 

A simple reaction takes place between iron and oxygen. When oxygen reacts with ferrous iron, it oxidizes and starts to rust. To ensure that maximum oxygen molecules react with ferrous iron oxide, sodium is added to the sachet. This promotes the reaction in an environment with low humidity. Multiple single iron and oxygen molecules keep reacting to form iron oxide. This continuously keeps reducing oxygen in the sealed container.

 

 

Benefits of Oxygen Absorber

●Helps retain fresh-roasted flavor of coffee and nuts
●Prevents oxidation of spice oleoresins present in spices themselves and in seasoned foods
●Prevents oxidation of vitamins A, C and E
●Extends life of pharmaceuticals
●Inhibits mold in natural cheeses and other fermented dairy products
●Delays non-enzymatic browning of fruits and some vegetables
●Inhibits oxidation and condensation of red pigment of most berries and sauces
●Oxygen deprivation contributes to a pest-free environment in museums

 

 

We had passed the ISO9001:2015, ISO14001:2015, BSCI, GMP and Walmart audits. Our products comply with RoHS certification and other certificates.

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Common Problems of Oxygen Absorber

 

Q: Is oxygen absorber safe for food?

A: Now you can get 3 to 5 x times better shelf life with Chunwang Oxygen scavenger packs, when used with proper packaging and sealing. Chunwang oxygen absorber packs are safe to use, non-toxic and keeps the food fresh, it is strongly recommended not to eat them.

Q: How does an oxygen absorber work?

A: Oxygen absorbers (also known as Oxygen Absorbing Packets, oxygen scavengers, or oxygen eaters) contain an iron powder formulation that becomes iron oxide in the presence of oxygen, chemically trapping available oxygen from the surrounding environment.

Q: Which is better silica gel or oxygen absorber?

A: Silica gel may be more appropriate for products sensitive to moisture or high-pressure packaging environments. At the same time, oxygen scavengers may be more appropriate for products susceptible to oxidation or spoilage caused by oxygen exposure.

Q: How long does an oxygen absorber last?

A: Chunwang, a manufacturer of oxygen absorbers, states that the self-life of unopened oxygen absorbers is usually about 2 years in the sealed state. So, you have 2 years to use them (if you leave them in the original packaging). Once they have been opened, you should use them within 6 months.

Q: What foods should you not use oxygen absorbers?

A: This includes dehydrated food, herbs, spices, grain, rice, flour, and salt. There are only two dry items that should not get an oxygen absorber: do not use them in sugar or brown sugar. They dry them out (even though they are not actually desiccants).

Q: Are oxygen absorbers FDA approved?

A: Yes! Chunwang FDA-approved oxygen absorbers assist in maintaining colour, taste & freshness while preventing microbial growth and rancidity in packaged foods, pharmaceuticals and diagnostics.

Q: Do oxygen absorbers stop mold?

A: Oxygen absorbers help to prevent the growth and proliferation of bacteria, mold and mildew. A blend of absorbents will be anywhere from 15cc to 3000cc of oxygen, thereby safeguarding products from undesirable effects such as color and/or taste change.

Q: How do I know if my oxygen absorber is bad?

A: Over time, the iron powder will start to rust, and the packets will become hard and crumbly. If you notice that the packets are hard or have rusted, it's likely that the oxygen absorbers are no longer effective and should be replaced.

Q: Do oxygen absorbers really work?

A: When packaged properly (i.e., an appropriately sized oxygen absorber inside of a high oxygen barrier can or bag), the oxygen level in the surrounding atmosphere is effectively reduced to approximately 0.01%. Therefore, oxygen absorbers extend the shelf life of your food, prevent oxidation and insect damage.

Q: What is oxygen absorber made of?

A: Oxygen absorbers. Based on iron or iron oxide, enzymatic oxidation, ascorbic acid oxidation, light-activated quinone containing film or photo initiated polymers and applied to remove oxygen to avoid bacterial growth and oxidation. Oxygen absorbers are available in many forms (sachet, film crown cork).

Q: Can I use oxygen absorber for cookies?

A: Oxygen Absorbers don't have to be for long-term storage only and other options are available to also help you keep your chips, cookies and muffins fresher than any other storage method, or keep bugs out of your flour.

Q: Can you put oxygen absorbers in the fridge?

A: Do not use oxygen absorbers to extend storage time in the refrigerator.

Q: Do oxygen absorbers prevent rust?

A: The RP-A type is a two-in-one oxygen and moisture absorber, which will keep industrial metals or archaeological pieces free of rust and well protected. While oxygen absorbers are the cornerstone of the RP System, bags with a high gas barrier are also extremely important to ensure lasting protection.

Q: What happens if oxygen absorbers get hot?

A: If it gets real hot and uncomfortable, it is in full out working mode and has probably been exposed to the air for too long to be usable. In this case it may also start to feel hard and brick like. Toss it. Oxygen absorbers themselves have a limited shelf life, even when sealed.

Q: Can you use oxygen absorbers in rice?

A: Yes. The best temperature to store grains, including rice, is 40°F or below; however, rice stored at a constant 70° F with oxygen absorbers will store well for up to 10 years.

Q: Do I need oxygen absorbers if I vacuum seal?

A: No, you do not need oxygen absorbers when vacuum sealing. This type of packaging removes all the air from inside the bag and prevents it from coming into contact with your product.

Q: What happens if you microwave an oxygen absorber?

A: Most oxygen absorbents cannot be heated in a microwave as the packet can ignite or burst inside. There are some forms that can be heated in a microwave—manufacturer specifications on the packet will state whether or not it can be microwaved.

Q: Can I use oxygen absorbers in flour?

A: You can place oxygen absorbers inside the sealed container to prevent oxidation and extend the shelf life of the flour. Placing a bay leaf in the flour container will deter bugs.

Q: How long do oxygen absorbers last in a jar?

A: Store the unused packets in an airtight glass jar or PETE container for up to 6 months. Oxygen absorbers are not harmful, but do not eat them. Discard them when opening and using your storage.

Q: What is the difference between a food desiccant and an oxygen absorber?

A: Oxygen absorbers work best in airtight packaging, such as vacuum-sealed bags, whereas desiccants are effective in any type of packaging, as long as they are in direct contact with the product. The storage conditions of your product can also affect the choice between oxygen absorbers and desiccants.

We're professional oxygen absorber manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale high-grade oxygen absorber from our factory.

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