When it comes to cannabis storage, selecting the proper glass jar sizes is critical for retaining quality, preserving potency and maintaining industry compliance. With over 40 years of packaging expertise, Green Rush Packaging understands how these sizing choices impact the success of cannabis brands, growers and retailers alike.
Why glass jars sizes matter for cannabis storage
To maintain its distinctive qualities, cannabis requires dependable storage in appropriately sized containers. Glass jar sizes for cannabis are carefully designed to extend shelf life and offer superior protection against humidity, light and odor. The chemically stable properties of glass prevent interactions so that both flavor and potency are preserved.
According to a study published in the Journal of Cannabis Research, proper storage conditions significantly impact cannabinoid stability and potency retention. Glass containers consistently outperform plastic alternatives for long-term storage.
Additional research from the report highlights the important role storage conditions play in preserving cannabinoid stability and maintaining potency over time. The study underscores that glass containers consistently outperform plastic options for long-term cannabis storage. Their superior durability, non-reactive properties and ability to provide an airtight seal make glass an optimal choice for retaining cannabis quality, potency and flavor far better than other materials. The data emphasize how vital selecting the right storage solution is to increase lifespan and effectiveness of cannabis products.
However, choosing the right cannabis storage jars is just as crucial as choosing glass itself. With the right-sized jar, you can meet compliance guidelines and protect your product’s quality. As the American Society for Testing and Materials (ASTM) develops standardized protocols for cannabis packaging, understanding proper storage techniques becomes increasingly important.
How to choose glass jars for cannabis
Our full collection of premium glass jars made specifically for the cannabis industry provides numerous options tailored to different products, quantities and storage needs. Here are the types of glass jars Green Rush Packaging carries to help you make the best selection for your products.
Flower & edible packaging jars
Glass jar sizes easily accommodate different quantities of cannabis flower and edibles; it provides optimal storage conditions to preserve terpene profiles and potency. The right-sized jar creates an ideal air-to-product ratio that minimizes oxidation and maintains the proper humidity levels.
- Size options: 1 oz, 2 oz, 3 oz, 4 oz, 5 oz, 6 oz, 10 oz, 70mm, 88mm
- Capacity: From 1.5 grams up to half an ounce (14g) of flower
- Packaging: Available in cases of 150-200 jars
Smaller jars (1-3 oz) are ideal for premium flower in eighth or quarter-ounce quantities and reduce air exposure each time the container is opened. Larger sizes (4-10 oz) are better equipped for bulk flower or multiple edible products and still maintain an airtight seal.
Concentrate containers 
For cannabis concentrates, specialized glass containers showcase product quality and address the specific storage challenges of these potent extracts.These can include protection from light degradation, maintaining proper humidity levels, preventing terpene evaporation, avoiding contamination from silicone or plastic and preserving the delicate consistency of various concentrate types from shatter to live resin. The glass material prevents terpene degradation that can occur with silicone or plastic alternatives, so customers experience the full flavor profile and potency.
- Size options: 5ml, 6ml, 7ml
- Designs: Round and square options available
- Features: Twist-on/off lids and screw top options
- Ideal for: Crumble, wax, oil and other concentrates
- Packaging: Available in cases of 200-400 containers
These compact containers are precisely sized to match typical concentrate purchase quantities (0.5g-1g), with the 5ml option perfect for smaller amounts and the 7ml providing extra space for tools. Square designs maximize shelf space efficiency in dispensary displays, and round options offer easier access to product.
Glass pre roll jars
Specialized glass jars designed to preserve freshness and protect pre-rolled products offer significant advantages over traditional packaging:
- Size options: 70mm, 88mm jars
- Designs: Cylindrical options with airtight, crush-proof functionality
- Features: Easy-to-use with child-resistant caps
- Ideal for: Packaging 5–7 pre rolls
- Packaging: Sold in bulk cases of 150–300 jars
The 70mm height fits standard pre-rolls, and the 88mm option provides space for king-size or specialty pre rolls. The cylindrical design prevents bending or crushing during transport and storage, a common issue with paper or plastic tube packaging.
The airtight seal maintains optimal humidity and preserves terpenes, so that the pre rolls deliver the intended flavor and potency experience even after extended storage. This option is particularly valuable for premium pre roll offerings, where product integrity directly impacts customer perception and brand reputation.
Color & finish options
Our cannabis jars come in a variety of colors and finishes to match your brand aesthetic:
Industry-specific glass jar size recommendations
Every segment of the cannabis industry has unique packaging needs, and we deliver tailored solutions to match:
Cannabis brands
Maintain brand consistency and compliance across multiple states with our customizable jar designs that amplify your product’s identity and meet regulatory demands. Effective cannabis branding starts with distinctive packaging that communicates your values and product quality.
Cannabis growers
Protect your carefully cultivated strains with jars that preserve freshness and showcase quality from harvest to sale. Research shows that proper storage immediately after harvest can preserve terpene profiles that might otherwise degrade rapidly.
Dispensaries & retail stores
Impress customers with clear, child-resistant glass jars that elevate dispensary displays and reinforce your retail brand. According to BDSA, well-packaged products typically command premium prices and build stronger customer loyalty.
Co-packers
Streamline operations with bulk packaging solutions that emphasize efficiency and standardization for the brands you support. Industry experts emphasize that standardized packaging processes reduce compliance risks and operational inefficiencies.
Tailoring glass jar sizes to your cannabis packaging needs
Selecting the right cannabis storage jars requires careful consideration of factors like consumption patterns, storage conditions, and design preferences:
- Storage density – why ideal packaging density matters: Proper density helps preserve flower quality by minimizing airflow and physical damage. Frequent users may prefer larger jars for bulk storage, and occasional consumers benefit from smaller containers that reduce exposure and maintain freshness.
- Storage conditions: UV-protected jars help shield delicate flower from light degradation; clear glass options let you showcase color and trichome quality.
- Design preferences: From jar shape to lid style and label placement, customizable options help you create a look that resonates with your customers and reflects your brand identity.
Maximizing cannabis freshness with quality storage
Proper glass jar storage is more than presentation – it’s essential for preserving product integrity. Keeping humidity levels in the ideal range of 55% to 62% helps minimize mold risk while preventing over-drying, maintaining optimal freshness for:
- Dried flower (up to 12 months)
- Oils (over 1 year)
- Edibles (up to 7 days)
Optimize your cannabis storage jars by adding humidity packs to maintain proper moisture levels and preserve shelf life.
Child-resistant options for compliance
Most of our jars offer child-resistant (CR) technology, including our exclusive Grip ‘N Turn™ design for concentrate containers, ensuring compliance with regulatory requirements.
Beyond meeting compliance requirements, you can depend on our extensive selection of child resistant glass jars to maintain a premium look and feel. With 44 different CR options in our flower jar collection alone, you can achieve the perfect balance of safety and style.
Customizable packaging options
At Green Rush Packaging, we understand the importance of branding in the cannabis industry – it really does make a difference. That’s why all our glass jars and concentrate containers are fully customizable to suit your distinctive branding needs. Stand out in any dispensary with packaging that reflects the quality and professionalism of your products.
Your trusted partner in cannabis packaging excellence
Green Rush Packaging is not just another cannabis supplier. We’re your partner in achieving exceptional cannabis storage solutions. In addition to top-quality glass jars, we offer:
With fast delivery, superior customer service and progressive designs, our team is dedicated to helping your cannabis products shine and preserving their quality. Get details >
Strengthen your packaging strategy
Don’t let improper storage compromise months of hard work. Discover the ideal glass jar sizes and innovative cannabis packaging to meet your unique needs.
Shop now and see the difference Green Rush Packaging makes. Have questions? Contact our experts to find the perfect fit for your business.
