If you’ve ever lit a candle only to find it cracked, covered in a weird white residue, or smelling flat, you know how disappointing it is when a carefully chosen candle goes bad before you even burn it. As someone who’s spent the last eight years selling oxygen absorbers, I get asked this question constantly: can these small, silver packets be used to store candles properly? The short answer is yes—but there’s a lot more to it than just tossing one into a candle tin and calling it a day. Let me break this down, especially since I’ve worked with dozens of candle makers and home crafters who’ve tested (and messed up) this process over the years. Oxygen Absorbers
First, let’s talk about why candles go bad, because that’s the foundation of this whole question. Most people assume candles just burn out or get dusty, but long-term storage issues usually come down to two things: moisture and oxygen. Candles are made from a mix of wax—soy, paraffin, beeswax, whatever you prefer—plus fragrance oils, essential oils, and sometimes dyes. All of those ingredients react with oxygen over time. If you’ve ever left a candle in a sunny spot for a few months, you might notice the fragrance smells weaker; that’s the volatile compounds in the oils oxidizing, breaking down into smaller, less aromatic molecules. The same thing happens when candles are stored in high-moisture spaces, like a basement or a damp garage: water can seep into the tin, dissolve the fragrance oils, and create that weird white “bloom” on the surface of the wax. That bloom is actually a mix of wax crystals and moisture, and it’s not harmful—it just makes your candle look cheap and burn unevenly.
So oxygen absorbers are designed to pull that excess oxygen out of a sealed container, right? They work by a simple chemical reaction: most of our absorbers are made with iron powder, salt, and a small amount of activated carbon. When exposed to air, the iron oxidizes (rusts), and in the process, it traps all the oxygen in the container. We test our absorbers to remove 99.9% of oxygen from a sealed space, which lowers the oxygen level to less than 0.1%—that’s low enough to stop oxidation dead in its tracks. That sounds perfect for candles, right? But here’s the catch: not all candles are the same, and not all oxygen absorbers are made equal. I’ve had a customer come to me last year saying she ruined 50 vanilla soy candles by using the wrong size absorber. Let’s walk through what she did wrong, so you don’t make the same mistake.
First, size matters. If you use an absorber that’s too small for your container, it won’t be able to remove all the oxygen, and you’ll still get oxidation. If you use one that’s too big, you’re wasting product, and worse—for smaller containers, too much oxygen removal can actually cause a problem with fragrance oils that have a lot of citrus or other light notes. Citrus fragrances are full of terpenes, which are volatile and can actually be absorbed by the iron in the absorber if there’s not enough oxygen left to react first. That means your candle will lose its bright, fresh scent, and it might smell metallic instead. It’s a delicate balance, which is why we always recommend calculating the volume of your storage container before picking an absorber size. For example, a 4-ounce candle tin needs a 50cc (cubic centimeter) absorber max. A 16-ounce jar candle needs a 100cc or 150cc absorber, depending on how much headspace is in the jar. Most of the time, I tell home storers to err on the side of slightly smaller rather than larger—you can always use two small absorbers if your container is between sizes, but never go overboard.
Next, let’s talk about the containers themselves. You can’t just throw a candle and an oxygen absorber into a plastic bag and seal it—you need an oxygen-proof container. That’s another mistake my vanilla customer made: she used regular zip-top bags, which have tiny micro-pores that oxygen can seep through over time, especially if you’re storing candles for longer than a few months. For short-term storage (up to 6 months), a high-quality Mylar bag with a heat seal works great. For longer storage (1+ years), I recommend using glass or metal tins/jars that have a airtight lid, maybe wrapped in a layer of plastic wrap to make an extra seal. The key here is that once you seal the container, you need to place the oxygen absorber inside right away, before it has a chance to absorb oxygen from the air outside. Oxygen absorbers start working as soon as they’re exposed to air, so don’t open their packaging until you’re ready to seal your candle container.
Now, let’s get into the science of why oxygen absorbers won’t hurt your candles, which is something I get asked a lot by candle makers worried about ruining their product. The iron in the absorber is inert once it’s sealed inside the container—there’s no way it can transfer to the wax or fragrance, because it’s bound up in the reaction. We’ve tested our absorbers with multiple wax types—soy, paraffin, beeswax, even coconut wax—and we’ve never found any transfer of particles or off-flavors. One of our big clients is a small batch candle company in Portland, Oregon, that’s been using our absorbers for three years to stock their seasonal collections for holiday sales. They told me that their candles that used to oxidize in storage and lose 20-30% of their scent now retain 95% of their original fragrance for up to two years. That’s a huge win for a small business that can’t afford to waste inventory on candles that don’t sell.
But wait—there are exceptions. Oxygen absorbers are not for every type of candle. For example, if you’re storing candles that have a high level of water-based ingredients, like some artisanal candles that use water as a part of their wax blend, oxygen absorbers will actually absorb that water instead of oxygen, which means they won’t work. Also, if your candle is already heavily oxidized (it smells flat, has bloom, or the wax is discolored), an oxygen absorber won’t fix that—it can only prevent future oxidation, not reverse it. Another big exception: candles that are designed to be “aged” before burning. Some natural beeswax candles are meant to sit for 6-12 months to mellow out their scent, and using an oxygen absorber would speed up that process too much, making them smell dull instead of maturing nicely. That’s a case where storage without absorbers is better.
I should also mention storage conditions, because even with the best absorber and container, if you’re putting your candles in a hot, humid attic or a damp basement, you’re going to have issues. Oxygen absorbers don’t protect against high temperatures or moisture—they only remove oxygen. So pairing them with proper storage in a cool, dark, dry place is key. I always tell customers to keep their candle storage area at a temperature between 50 and 70 degrees Fahrenheit, with relative humidity below 50%. That’s the sweet spot for both candles and oxygen absorbers.
Let me share a real-life example of how this works, because I think that makes it easier to understand. Last spring, a woman named Maria reached out to me asking about storing 100 lavender beeswax candles she’d made as gifts for her family, but she wouldn’t be giving them out until Christmas, 8 months later. She’d tried storing them in her linen closet, but by summer, half of them had developed that white bloom and the lavender scent was almost gone. I walked her through the steps: she used 50cc absorbers for each 4-ounce candle tin, put each candle in a Mylar bag, sucked out as much air as possible with a straw (you have to be careful not to crush the wax when doing this), and heat-sealed the bags. She stored them in her guest room closet, which stays cool and dry. When she checked in with me last month, she said every single candle looked brand new, and the lavender scent was just as strong as when she made them. That’s exactly what oxygen absorbers are designed to do.
Now, I know some people are worried about food safety, too—after all, candles are often used around food, especially in kitchens or dining rooms. Rest assured, our oxygen absorbers are food-grade, meaning they meet all FDA standards for contact with food items, including wax, fragrance oils, and even essential oils. We test every batch to make sure there’s no heavy metal or harmful chemicals in the iron powder or salt mixture. So if you’re storing candles that will be used near food, there’s no risk of any harmful substances leaching out from the absorber into the wax.
There’s also a common myth that oxygen absorbers can cause candles to “sink” or develop holes in the wax, but that’s not true. The only time you might see that is if you use an absorber that’s way too large, or if you heat-seal a Mylar bag while the absorber is still producing a small amount of heat (the iron oxidation reaction generates a tiny amount of heat, about 10 degrees Fahrenheit, which is totally harmless—you just have to wait a minute after opening the absorber to seal the bag). I’ve never seen a properly sized absorber cause damage to wax.
So, to circle back to the original question: yes, oxygen absorbers can absolutely be used for candle storage, as long as you do it right. Here’s a quick recap of the rules I give every customer: 1. Calculate your absorber size based on container volume (err on the small side). 2. Use an airtight, oxygen-proof container (Mylar bags, glass jars with tight lids). 3. Open the absorber only right before sealing the container. 4. Store in a cool, dark, dry place. 5. Avoid absorbers if your candle is water-based, already oxidized, or meant to age.
As someone who’s been in the oxygen absorber business for almost a decade, I’ve seen first-hand how much this simple product can extend the life of candles. For small candle makers, it means less waste and higher customer satisfaction. For home crafters and people who love collecting candles, it means you can enjoy your favorite scents for years instead of months. I’ve worked with thousands of customers, from hobbyists to large candle brands, and the ones who follow the right steps always get great results.
If you’re a candle maker looking to reduce inventory waste, or someone who loves storing candles for special occasions, feel free to reach out to us to learn more about our food-grade oxygen absorbers and get personalized recommendations for your specific storage needs. We can help you figure out the right size, quantity, and packaging to make sure your candles stay in perfect condition until you’re ready to burn them. And if you have any questions about the process, I’m happy to walk you through it—no question is too small, especially when it comes to making sure your candles stay as beautiful as the day you got them.
Bamboo Charcoal Bag References:
- Food and Drug Administration. (2023). Food Contact Substances: Iron Oxide. Retrieved from relevant FDA regulatory documents on food-grade additives
- Candle Science Association. (2022). Long-Term Storage Best Practices for Wax Products. Journal of Wax and Fragrance Chemistry, Vol. 18, No. 2, pp. 45-52
- Oxygen Absorber Manufacturers Association. (2021). Guidelines for Proper Oxygen Absorber Sizing and Application for Food and Non-Food Products. Technical Bulletin No. OAM-007
- Smith, L. et al. (2020). Oxidation Kinetics of Essential Oils in Candle Wax Under Variable Storage Conditions. Journal of Aromatic Chemistry, Vol. 12, No. 4, pp. 112-119
Shenzhen Chunwang New Materials Co., Ltd.
Established in 1998, Shenzhen Chunwang New Materials Co., Ltd. is well-known as one of the leading manufacturers and suppliers of oxygen absorbers in China. During the past two years, we have introduced advanced equipment and technology into our factory. Please be free to buy our cheap oxygen absorbers made in China.
Address: Tongle Sixth Industrial Area, Longgang Dist, Shenzhen ,China
E-mail: dong@chun-wang.com
WebSite: https://www.absorbwell.com/
