Skip to content
20% Discount for New Customers, Promocode: XOTIC
Premium Mylar Bags
Fast Free Shipping
20% Discount for New Customers, Promocode: XOTIC
Premium Mylar Bags
Fast Free Shipping
20% Discount for New Customers, Promocode: XOTIC
Premium Mylar Bags
Fast Free Shipping

Long-Term Cannabis Storage: Mylar Bags vs. Glass Jars

When it comes to long term cannabis storage, the choice between mylar bags and glass jars ultimately depends on your specific needs and preferences. The optimal storage choice should align...

Cannabis enthusiasts understand the importance of proper storage to maintain the potency, flavor, and overall quality of their herbs. Whether you're a medical cannabis patient or a recreational user, choosing the right storage method is crucial for preserving the characteristics that make your cannabis strains special. In this article, we'll explore the two primary options for long-term cannabis storage: mylar bags and glass jars, and help you decide which one suits your needs best.

Mylar Bags and Glass Jars for Long-Term Cannabis Storage

Before diving into the specifics of mylar bags and glass jars, it's essential to comprehend why proper cannabis storage is necessary. Cannabis is a delicate plant that can quickly degrade when exposed to certain elements. These elements include: 

Light: Ultraviolet (UV) light, in particular, can break down cannabinoids and terpenes, which are responsible for the herb's potency and flavor. Protecting your cannabis from light is crucial for preserving its quality.

Air and Oxygen: Oxygen can oxidize cannabinoids, causing them to lose potency and become less effective over time. Exposure to air can also lead to the growth of mold, which is a significant health concern.

Moisture: Cannabis should be stored in a low-humidity environment to prevent mold and mildew growth. Excess moisture can ruin your stash.

Now that we understand the factors that can harm your cannabis, let's compare mylar bags and glass jars as storage solutions, considering their ability to address these concerns.

Mylar Bags: A Closer Look

Mylar bags are a popular choice for long-term cannabis storage, especially when preserving the potency and flavor of the herb is a top priority.

Benefits of Mylar Bags: 

1. Superior Light Protection:

Mylar bags are renowned for their exceptional ability to block out light. They are often used for storing light-sensitive herbs like cannabis to preserve their potency and flavor. These bags are typically made from a combination of polyester and aluminum layers, which create a nearly impenetrable barrier to UV rays.

2. Airtight and Moisture-Resistant:

When properly sealed, mylar bags provide an airtight and moisture-resistant environment for your cannabis. This is essential for preventing oxidation, mold growth, and the degradation of cannabinoids and terpenes. Mylar bags can effectively keep your cannabis fresh for an extended period.

3. Lightweight and Portable:

Mylar bags are lightweight and less prone to breakage compared to glass jars. This makes them an excellent choice for portable storage or shipping. If you need to transport your cannabis or maintain a discreet profile, mylar bags offer convenience. 

4. Space Efficiency:

Mylar bags can be more space-efficient than glass jars. They are flexible and can be compressed to remove excess air, allowing you to store more herbs in a smaller space. This is particularly useful if you have limited storage room.

5. Creative Designs: Choose from a variety of different styles, sizes and brands with mylar bags.  Check out some mylar bag designs for inspiration on designs that are currently available. 

Glass Jars: A Closer Look

Glass jars are another popular choice for cannabis storage. They offer some unique advantages, particularly in terms of aesthetics and ease of use.

Benefits of Glass Jars: 

1. Good Light Protection:

While glass jars are not as effective as mylar bags in blocking out light, they can provide reasonable protection against UV rays. To enhance light protection, store your glass jars in a dark or opaque container, such as a cupboard or drawer.

2. Airtight Sealing:

Glass jars can create an airtight seal if equipped with a good-quality rubber gasket or an airtight lid. This seal helps prevent oxygen from entering the jar, reducing the risk of oxidation and preserving the herb’s quality.

3. Durability:

Glass jars are more durable and less likely to get damaged compared to mylar bags. They can withstand minor bumps and drops without compromising the integrity of your cannabis storage. If you value long-term durability, glass jars are a solid choice.

4. Aesthetic Appeal:

Glass jars are transparent, allowing you to see the cannabis inside. This can be aesthetically pleasing, especially if you have a collection of various strains that you want to showcase. The visual aspect of glass jars adds to their appeal.

Drawbacks of Glass Jars: 

  1. Bulkier and Heavier:

Glass jars are bulkier and heavier than mylar bags, which can be a disadvantage if you have limited storage space or need a portable storage solution. They may take up more room in your storage area.

  1. Moisture Control:

While glass jars are excellent at sealing out air, you may need to use additional moisture-control methods, such as desiccant packs or humidity monitoring devices, to maintain the proper moisture level inside the jar. This is important for preventing mold growth.

The Hybrid Approach: Mylar Bags Inside Glass Jars

Some cannabis enthusiasts opt for a hybrid approach, using mylar bags inside glass jars. This combination capitalizes on the strengths of both storage methods.

How It Works:

Place your cannabis in a mylar bag, which provides superior light protection and an airtight seal.

Place the sealed mylar bag inside a glass jar with an airtight lid.

Store the glass jar in a cool, dark place to maximize cannabis preservation.

This approach combines the light-blocking properties of mylar bags with the durability and aesthetic appeal of glass jars. It also allows for easy labeling and strain identification on the outer glass jar.


In the world of long-term cannabis storage, the choice between mylar bags and glass jars ultimately depends on your specific needs and preferences. Here's a quick recap of the key considerations:

Mylar Bags are ideal for those who prioritize superior light protection, portability, and space efficiency. They offer an airtight and moisture-resistant environment but require careful handling to prevent damage.  The most popular size for portability is the 3.5 gram mylar bags, but there are also other sizes to choose from. 

Glass Jars are preferred by those who value aesthetics, durability, and ease of use. They provide good light protection, an airtight seal, and an attractive display option but can be bulkier and heavier.

A Hybrid Approach combines the strengths of both methods, using mylar bags inside glass jars for optimal cannabis preservation.

Whichever option you choose, remember to store your cannabis in a cool, dark place to maximize its shelf life. Additionally, consider investing in humidity-control solutions, such as desiccant packs or humidity monitoring devices, to ensure that your cannabis remains in the best possible condition for the long term.

Ultimately, the choice between mylar bags and glass jars for long-term cannabis storage should align with your specific preferences, storage space, and priorities for preserving your prized cannabis strains. By selecting the right storage method, you can enjoy your cannabis at its peak quality for months or even years to come.


Your cart is currently empty.

Start Shopping

Select options