Matte Black
Opaque · luxury signal
Matte White
Best logo vibrancy
Clear Glass
Show the product
Hemp Plastic
Biodegradable
Custom glass jars are the premium end of cannabis flower packaging. Where a mylar bag is flat and flexible, a jar is rigid, reusable, and commands shelf presence — the kind of packaging that signals quality before a customer even opens the lid. Every jar in the lineup is airtight, smell-proof, and fitted with a child-resistant lid, with your brand printed directly on the glass or applied via a full-color label.
This guide covers all custom jar sizes available through Cannabis Promotions — 1 oz, 2 oz, 3 oz, and 4 oz glass jars in direct print and label variants, available in black, white, and clear glass — plus the biodegradable hemp plastic jar option for eco-conscious brands.
Quick Comparison Table
| Jar Size | Fits | Best For | Print Options | Glass Colors | Child-Resistant |
|---|
| 1 oz | 1–2g flower · concentrates | Samples, concentrates, gift sets | Direct print | Black · White · Clear | Yes |
| 2 oz | 3.5g (1/8 oz flower) | Standard retail 1/8 oz SKU | Direct print · Label | Black · White · Clear | Yes |
| 3 oz | 3.5g–7g · edibles | 1/8 oz premium · quarter oz · edibles | Direct print · Label | Black · White · Clear | Yes |
| 4 oz | 7g (1/4 oz flower) | Quarter oz flagship SKU · bestseller | Direct print · Label | Black · White · Clear | Yes |
| Hemp Plastic Jar | 3.5g–7g | Eco-conscious brands | Direct print | Natural hemp tone | Yes |
Direct Print vs. Label: Which Is Right?
Every glass jar size except the 1 oz is available in both direct print and label variants. This is one of the most important decisions in the ordering process — the print method affects the look, the cost, the turnaround, and the flexibility of your packaging.
Direct Print on Glass: Your logo is UV-printed directly onto the glass surface — no label, no adhesive, no peeling. A seamless, polished finish that looks built into the jar. Best for established brands with a locked-in design ordering at volume.
Applied Label: A full-color custom-printed label adhered to the jar surface. Lower minimums, faster turnaround, and easier to update. Best for smaller operations, frequently changing SKUs, or compliance-heavy markets.
Pro Tip: Many dispensaries use direct print jars for flagship strains and label jars for limited drops, seasonal strains, or compliance updates. You don't have to pick one method for your entire operation.
2 oz Custom Glass Jar
The 2 oz custom glass jar is sized for 3.5g of flower — the standard 1/8 oz retail unit representing the most common purchase quantity in most US markets. If you're transitioning your 1/8 oz SKU from mylar bags to glass, the 2 oz is the direct replacement that delivers a significantly more premium format at the same product weight.
Available in direct print and label variants across black, white, and clear glass. The jar signals quality and helps justify a higher retail price point for the same amount of product.
Choose 2 oz when: You're packaging the standard 1/8 oz (3.5g) retail unit in glass and want to upgrade from mylar bag presentation. Also right for branded 3.5g edible packaging where you need a premium, reusable container.
The label version of the 2 oz uses the same airtight, child-resistant glass jar with a full-color custom label applied to the body. Lower minimums and easier to reorder with design changes — the practical choice for dispensaries running multiple strain SKUs from the same jar format.
3 oz Custom Glass Jar
The 3 oz custom glass jar occupies the sweet spot between the compact 2 oz and the larger 4 oz. It comfortably holds 3.5–7g of flower — the right jar for a premium 1/8 oz with extra headspace, or a compact quarter-ounce SKU. Also strong for edibles that need room to breathe.
Available in direct print and label variants across black, white, and clear glass.
Choose 3 oz when: You want a premium 1/8 oz presentation with more visual presence than the 2 oz, you're packaging a compact quarter-ounce SKU, or you need one jar that handles both flower and edibles across your product line.
The label version of the 3 oz is popular for dispensaries that frequently update strain names or compliance text — change the label without reprinting an entire run of jars. The larger body of the 3 oz also gives labels more surface area to work with compared to the 2 oz.
4 oz Custom Glass Jar
The 4 oz custom glass jar at .19/unit is the most popular jar in the lineup and one of Cannabis Promotions' best-selling products overall. It holds 7g of flower — the standard quarter-ounce retail unit — with room to spare. The larger body surface gives your logo significantly more real estate, and the flat lid adds a second branding panel.
Available in direct print and label variants across black, white, and clear glass.
Choose 4 oz when: You want the bestselling, most versatile jar in the lineup. The 4 oz is the right choice for quarter-ounce flagship SKUs, premium flower retail, and any dispensary that wants a single jar format for the majority of their product weight range. At .19/unit, pricing makes it practical for full-menu rollouts.
The label version of the 4 oz flagship jar. Same airtight, child-resistant glass at .19/unit with a full-color custom label — the practical choice for dispensaries that want the 4 oz format across multiple strain SKUs without committing to a single direct-printed design.
Hemp Plastic Biodegradable Jars
Made from hemp fiber composite, the 3 oz hemp plastic jar is child-resistant, airtight, and fully branded with direct print — but biodegrades naturally at end of life. The natural material texture and earthy appearance reinforce an organic or artisan brand identity that glass can't replicate.
The 4 oz hemp plastic jar holds a full quarter ounce with the same performance specs as the glass lineup — smell-proof, airtight, child-resistant — while fully biodegrading at end of life. The right choice for brands whose eco commitments extend to their primary product containers.
Choose Hemp Plastic when: Your brand's sustainability story extends to product packaging. Pairs naturally with hemp pre-roll tubes and biodegradable hemp grinders for a fully consistent eco product suite.
How to Decide: A Quick Framework
Ask yourself three questions:
1. What product weight are you packaging? 1–2g samples or concentrates → 1 oz. Standard 1/8 oz (3.5g) → 2 oz. Premium 1/8 oz or compact quarter → 3 oz. Quarter ounce (7g) flagship → 4 oz (bestseller at .19/unit).
2. Direct print or label? Established brand, locked design, high volume → Direct print (seamless, no adhesive). Multiple SKUs, frequent design changes, compliance updates → Label (more flexible, faster to update).
3. Which material fits your brand? Opaque luxury feel → Black glass. Brightest logo color reproduction → White glass. Show-the-flower merchandising → Clear glass. Eco-conscious identity → Hemp plastic.
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Not Sure Which Jar Is Right?
Our team can help you choose the right size, print method, and glass color for your product and brand. Request a free mockup to see your logo on any jar before you order.
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FAQ
What is the most popular custom glass jar size?
The 4 oz glass jar is the most popular and one of Cannabis Promotions' best-selling products, at .19/unit. It holds a full quarter ounce (7g) of flower, has a large branding surface on both the body and lid, and is priced competitively enough for full-menu rollouts.
Are the custom glass jars child-resistant?
Yes. All glass jars include child-resistant lids that meet cannabis packaging compliance requirements in most US states. Always verify requirements with your specific state regulatory body, as they vary by jurisdiction.
What's the difference between direct print and label glass jars?
Direct print uses UV digital printing to apply your logo directly onto the glass surface — no adhesive, no peeling, a completely seamless finish. Label jars have a custom-printed label adhered to the glass. Direct print suits high-volume runs with a locked design. Labels offer more flexibility — easier to change designs, update compliance information, or run multiple SKUs from the same base jar.
How much flower fits in each jar size?
1 oz jars hold 1–2g comfortably. 2 oz jars hold 3.5g (standard 1/8 oz). 3 oz jars hold 3.5–7g depending on bud density. 4 oz jars hold 7g (standard quarter ounce). All jars have slightly more capacity than the cannabis weight suggests, giving the product room to breathe and a more generous appearance when sealed.
Are the glass jars airtight and smell-proof?
Yes. All glass jars include an airtight lid gasket that prevents air exchange and contains odors — essential for product freshness and compliance in states that require smell-proof cannabis packaging at retail.
What pairs well with custom glass jars?
Custom glass jars pair naturally with branded exit bags for a consistent dispensary packaging experience. For a complete retail product suite, combine jars with custom pre-roll tubes and custom mylar bags across different product formats.
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