A question we hear often is "Can you store chocolate in mylar bags?" Yes, you can store chocolate in Mylar bags, and when it is done correctly, it is one of the best ways to protect chocolate from heat, moisture, oxygen, and light. Mylar bags are widely used for long term food storage because they create a strong barrier that helps preserve flavor, texture, and shelf life. For chocolate in particular, that barrier matters a lot.
The sensitivity of chocolate is due in part to its ability to pick up odors, respond to high and low humidity levels, and lose its quality when it's subjected to extreme changes in temperature or when exposed to moisture or air (oxygen). To manage these factors all in a single piece of packaging, Mylar bags can be used.
In the following articles, I will explain exactly how/why Mylar bags function as a means of storing chocolate, as well as what types of mistakes you should avoid while working with them.
Why Chocolate Needs Special Storage
Chocolate is more delicate than many people think. Even the best chocolates can deteriorate very quickly when they are not stored properly.
What can negatively affect the quality of chocolate?
1. The presence of oxygen affects the flavor and contributes to fat oxidation.
2. The presence of moisture leads to sugar bloom or issues with texture.
3. The presence of light can negatively affect the cocoa butter quality and the taste.
4. Fluctuations in heat can cause fat bloom or discoloration.
The issue related to oxygen, moisture and light as a result of storing chocolate in mylar bags can be resolved.
Why Mylar Bags Work So Well for Chocolate
Mylar bags are composed of polyester film with an aluminum layer that provide virtually no permeability to external influences. These features make them a great choice for long term food storage including fats and some delicate flavorings.
Mylar bags provide the following advantages for chocolates:
- Excellent oxygen barrier
- Strong moisture resistance
- Protection from light exposure
- Odor blockage
- Long-term durability without failure
When sealed properly, Mylar bags create an inert micro-climate in which the chocolate remains fresh for much longer than when stored in typical cardboard boxes or with plastic wrap or zip-lock bags.
How Long Chocolate Lasts in Mylar Bags
The shelf life of chocolates varies according to type of chocolate and conditions of storage. However, storage of chocolates in Mylar bags greatly increases the shelf life of chocolates.
- Dark chocolate can last 2 to 5 years when sealed with oxygen absorbers and stored cool
- Milk chocolate usually lasts 1 to 2 years due to higher dairy content
- White chocolate has the shortest life, often under 1 year, but still improves with Mylar storage
How to Store Chocolate in Mylar Bags Properly
- Use food grade Mylar bags with sufficient thickness
- Place chocolate in the bag while it is completely dry
- Add an oxygen absorber if long term storage is the goal
- Heat seal the bag completely, not just zip it
- Store in a cool, dark, stable location
Avoid areas with temperature swings like garages or near appliances.
While Mylar bags help protect chocolate from oxygen and moisture, actual shelf life varies by food type and storage conditions.
Should You Use Oxygen Absorbers With Chocolate?
Using oxygen absorbers to preserve food quality is a great way to enhance freshness, prevent oxidation & maintain taste. Proper sizing of an oxygen absorber will manage oxidation.
Considerations for how to use oxygen absorbers:
- Choose a smaller than average size. Less than 100cc.
- Do not put in more than necessary.
- Be sure the chocolate is packaged separately has no contact with the oxygen absorber.
In closing, you can increase the shelf life of food products with proper application of oxygen absorbers.
Common Mistakes When Storing Chocolate in Mylar Bags
Storage problems, almost always, have been caused by small errors or mistakes made.
Here are some of the most common ones.
- Storing your Chocolate when it is still Warm.
- Getting Moisture Inside the Bag.
- Not Heat Sealing.
- Using Thin & Low Quality Mylar-Example.
- Storing in Hot or Fluctuating Environments.
Most complaints about chocolate bloom or flavor loss trace back to temperature issues, not the Mylar itself.
Is Mylar Better Than Plastic for Chocolate Storage?
Yes, Mylar is much better than regular plastic bags.
Plastic provides slow airflow through the bag, does not shield against light well, and may retain or transfer a smell. Mylar was developed with these problems in mind and is therefore used in commercial food packaging and long-term storage purposes.
So, Can You Store Chocolate in Mylar Bags?
Yes. Chocolate can be safely stored in Mylar bags as long as it is sealed, kept dry, and stored in a cool, dark place. Mylar bags protect chocolate from oxygen, moisture, light, and odors, helping extend shelf life and preserve flavor.
Why Brands Are Choosing Custom Mylar Bags for Chocolate Storage
Brands are increasingly gravitating towards custom Mylar bags when packaging their chocolate products. Mylar provides the user with superior protection while also improving the visual appeal of chocolate on retail shelves.
Mylar bags create an effective barrier to oxygen, moisture, light and odors, all of which help to prevent bloom, loss of flavor, and changes to texture of chocolate during storage and shipping. The ability for brands to custom print their bags also allows them to control their branding, portion sizes and superior labelling while maintaining freshness of their product.
For many chocolatiers, the use of custom Mylar bags offers a packaging solution that balances durability and function with professional presentation and reliable protection of their products.
If you are curious what this type of packaging looks like in practice, you can see examples of custom Mylar bags commonly used for chocolate and other food products.
If you need to store chocolate for a long time without losing flavor, texture or quality, Mylar is the best option available. When using an appropriate sealing system, oxygen control and refrigeration; Mylar outperforms most conventional storage options by many multiples!
Mylar is the perfect storage medium for your personal chocolate stash, survival food supplies or retail packaged goods because it is the barrier between your chocolate and outside elements; so even when you buy it, you'll still be able to enjoy eating it!
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