Cannabis packaging comes with its own technical language. Terms such as child-resistant, barrier pouch, OTR, dieline, MOQ, and tamper-evident can directly affect package performance, artwork, compliance, cost, and production.
This glossary explains the cannabis packaging terms that matter most when developing custom cannabis packaging. It focuses on practical definitions, common differences, and the details worth confirming before approving a design or requesting a quote.
What Is Cannabis Packaging? Key Terms to Know First
Cannabis packaging refers to the containers, pouches, boxes, tubes, labels, and related components used to contain, protect, identify, display, and distribute cannabis products.
The first distinction to understand is the difference between primary packaging and secondary packaging.
Primary Packaging vs. Secondary Packaging
Primary packaging is the package that directly contains or immediately encloses the product. A flower pouch, concentrate jar, pre-roll tube, or edible container can all function as primary packaging.
Secondary packaging sits outside the primary package. It can add structural protection, branding space, retail presentation, or room for additional product information.
An outer carton, for example, may hold a jar, vape cartridge, or pre-roll tube. The jar or tube is the primary package; the printed carton is the secondary package. Custom cannabis boxes are commonly used in this secondary-packaging role.
This distinction matters because the two layers often have different material, printing, labeling, and functional requirements.
Common Cannabis Packaging Formats
Several packaging formats appear repeatedly in cannabis packaging specifications:
- Mylar bag / barrier pouch: A flexible laminated pouch commonly used for flower, edibles, gummies, and pre-rolls. Custom Mylar bags can be configured with different structures, closures, finishes, and printing options.
- Cannabis jar: A rigid glass or plastic container used for flower, concentrates, or edibles.
- Concentrate jar: A small-format container designed for products such as wax, rosin, shatter, or other extracts.
- Pre-roll tube / doob tube: A slim cylindrical container for individual or multiple pre-rolls. Custom pre-roll tubes are available in different materials, sizes, and closure formats.
- Folding carton / cannabis box: Printed paperboard packaging used around jars, vape products, pre-rolls, and other retail units.
- Label: A printed adhesive or applied information layer used for branding, product information, variable data, or compliance content.
A packaging format describes the physical form. It does not automatically tell you what material, barrier level, closure, or printing method is being used.
Child-Resistant, Tamper-Evident, and Other Safety Terms
Safety terminology is one of the most important parts of cannabis packaging because several terms sound similar but describe different functions.
Child-Resistant vs. Childproof
Child-resistant packaging, commonly shortened to CR packaging, is packaging designed and tested to be significantly difficult for young children to open while remaining usable by adults. In the U.S., the Poison Prevention Packaging Act (PPPA) established the federal framework for special packaging, while 16 CFR § 1700.20 sets out child-resistant packaging testing procedures referenced in many regulated packaging contexts.
“Child-resistant” does not mean “childproof.”
The distinction matters. A child-resistant system is intended to reduce access by children through a tested opening mechanism. It is not a guarantee that a child can never open the package. For a more focused discussion of mechanisms and requirements, see our guide to child-resistant packaging.
Common CR mechanisms include:
- Push-and-turn closure: The user pushes down while rotating the cap.
- Squeeze-and-turn closure: The user applies pressure to designated areas while turning.
- CR zipper: A pouch zipper with an additional locking or coordinated opening action, as used in some custom child-resistant Mylar bags.
- Peel-push system: A multi-step opening format used in some blister-style packages.
When specifying CR packaging, confirm the actual mechanism rather than relying only on the words “child-resistant.”
Child-Resistant vs. Tamper-Evident
Tamper-evident packaging includes a feature that provides visible evidence if the package has been opened, disturbed, or altered.
Typical tamper-evident features include shrink bands, breakable seals, tear strips, foil seals, and breakable closure rings.
| Term | Main Purpose | Typical Examples |
|---|---|---|
| Child-Resistant | Make access difficult for young children | CR zipper, push-and-turn cap |
| Tamper-Evident | Show evidence of prior opening or alteration | Shrink band, tear strip, inner seal |
| Resealable | Allow repeated closing after opening | Standard zipper, reclosable lid |
| Heat Seal | Create a sealed edge or opening using heat | Sealed pouch top |
These features are not interchangeable. A resealable zipper is not automatically child-resistant, and a tamper-evident seal does not automatically provide child resistance.
An exit bag is a retail carry-out or compliance package used in jurisdictions that require cannabis products to leave a dispensary in specified outer packaging. Requirements vary by state, product type, and packaging format.
For a buyer, the important step is to define the required function first and then select the closure or package structure that provides it.
Materials and Packaging Structure Terms
Packaging material names can be misleading if they are considered without the full structure of the package. Our broader guide to cannabis packaging materials covers these material choices in more detail.
Mylar, Barrier Pouches, and Laminates
Mylar is a trade name associated with polyester film, while Mylar bag is widely used in the cannabis packaging market as a general term for laminated high-barrier flexible pouches.
Not every pouch sold as a Mylar bag has the same construction.
A flexible pouch may combine several layers, such as PET, PE, metallized film, foil, or other polymers. These layers can serve different functions including printability, strength, sealing, moisture protection, oxygen protection, or light barrier.
A laminate is a packaging structure created by bonding multiple material layers together.
A barrier pouch is a flexible package designed to limit transmission of substances such as oxygen, water vapor, light, or odor.
When sourcing a custom Mylar bag, it is more useful to confirm:
- Material structure
- Thickness
- Required barrier performance
- Zipper or closure type
- Heat-seal requirement
- Printing method
- Surface finish
- Product application
“Mylar bag” alone is not a complete material specification.
Common Rigid Packaging Materials
PET — Polyethylene Terephthalate is a common rigid plastic used for jars, bottles, and clear containers.
HDPE — High-Density Polyethylene is a rigid plastic commonly used for bottles, caps, and pharmaceutical-style containers.
PP — Polypropylene is widely used for closures, jars, and other rigid packaging components.
Glass is commonly used for flower and concentrate jars where rigidity, appearance, and product compatibility are important. Custom glass jars for cannabis can also provide a rigid packaging option where branding, visibility, and container presentation matter.
Other structural terms buyers may encounter include liner, insert, and foam insert. These are internal components used for sealing, positioning, cushioning, or presenting the product.
An induction seal liner is a foil-based liner that can be bonded to a container opening using electromagnetic induction. It creates an additional seal beneath the cap and can support tamper evidence and seal integrity.
Material choice should be based on the complete package system, not one resin or film name in isolation.
Barrier, Freshness, and Product Protection Terms
Barrier properties describe how well packaging resists the transmission of oxygen, moisture, light, odor, or other external factors.
For flower, edibles, concentrates, and other sensitive products, barrier performance can affect product stability during storage and distribution.
OTR vs. WVTR / MVTR
Two common packaging performance terms are OTR and WVTR.
| Term | Meaning | What It Measures |
|---|---|---|
| OTR | Oxygen Transmission Rate | Oxygen passing through a packaging material |
| WVTR | Water Vapor Transmission Rate | Water vapor passing through a material |
| MVTR | Moisture Vapor Transmission Rate | Another term used for moisture-vapor transmission |
OTR — Oxygen Transmission Rate indicates how much oxygen passes through a material under specified test conditions.
WVTR — Water Vapor Transmission Rate, sometimes discussed as MVTR — Moisture Vapor Transmission Rate, describes water-vapor transmission through the packaging material.
Lower transmission values generally indicate stronger barrier performance under the stated test conditions. They should not be treated as a complete prediction of shelf life because actual performance also depends on seals, closures, storage conditions, package construction, and the product itself.
Moisture, Odor, Light, and UV Barrier
A moisture barrier limits movement of water vapor through the package.
An odor barrier, often marketed as smell-proof packaging, is intended to reduce the transmission of strong product aromas through the package structure. In practice, products such as custom smell-proof Mylar bags rely on the overall laminate, closure, and seal rather than on a single material name.
A light barrier reduces exposure to visible light, while UV-resistant packaging is designed to reduce ultraviolet exposure.
Seal integrity describes the ability of the package seal to remain continuous and secure. A high-barrier film provides limited value if the package has a weak zipper, incomplete heat seal, or damaged closure.
For cannabis flower, humidity control may also be part of the packaging system. Two-way humidity packs are sometimes used to help maintain a target storage environment, with approximately 58%–62% RH commonly referenced for flower storage.
Terpene preservation is better understood as a packaging objective than as one single material property. Barrier performance, seal integrity, storage conditions, and headspace can all affect aroma retention.
Good cannabis barrier packaging starts with the product protection problem that needs to be solved, not with a generic claim such as “premium film.”
Printing, Artwork, and Finish Terms Buyers Should Understand
Custom printed cannabis packaging requires a different vocabulary from stock packaging. The most important terms appear before mass production begins.
Dieline, Bleed, and Safe Area
A dieline is the structural layout used to place artwork correctly on a package before printing and converting.
Depending on the packaging format, a dieline may show:
- Cut lines
- Fold lines
- Seal areas
- Zipper locations
- Bleed areas
- Safe areas
- Windows or openings
Bleed is artwork that extends beyond the final trim or cut line so small cutting variations do not leave unintended blank edges.
The safe area is the region where important logos, text, symbols, or other critical content should remain to reduce the risk of being cut, folded, sealed, or obscured.
A dieline is therefore not just a visual template. It connects package structure with printable artwork.
CMYK, Pantone, Proof, and Production-Ready Artwork
Artwork is the visual design applied to a package.
Production-ready artwork is a file prepared to meet the technical requirements of the selected printing and manufacturing process. A logo file, screenshot, or flat JPG is not necessarily production-ready packaging artwork.
CMYK refers to the cyan, magenta, yellow, and black process-color system commonly used in printing.
Pantone / PMS color refers to standardized spot-color references used when more controlled color matching is required.
A proof is a pre-production representation used to review artwork, color, content, placement, or other print details.
A mockup is a visual or physical representation of the final package. It is useful for reviewing structure and appearance but may not always reproduce the exact material and print behavior of mass production.
If artwork still needs structural adaptation or production preparation, a packaging supplier’s custom design and packaging service can help connect the visual concept with the dieline, print process, material, and final manufacturing requirements.
Common Printing and Finish Terms
Cannabis packaging may use digital printing, flexographic printing, or gravure printing, depending on the package type, order volume, artwork, and production requirements.
Common finish terms include:
- Matte: Low-reflective surface appearance
- Gloss: High-reflective, shinier surface
- Soft touch: A finish designed to create a softer tactile feel
- Foil stamping: Metallic decorative effect applied to selected areas
- Holographic finish: Reflective or shifting visual effect used for branding and shelf impact
Printing method and finish can affect setup, production process, cost structure, appearance, and minimum order quantity. These details should be defined before final artwork approval.
Labeling and Compliance Terms That Affect Packaging Design
Cannabis packaging compliance is not only about the container. Label information, symbols, visibility rules, and variable production data can directly affect the dieline and artwork. For a deeper look at these issues, see our guide to cannabis packaging labeling and compliance.
Universal Symbol, Warning Statements, and Opacity
A universal symbol or THC symbol is a required cannabis warning icon used in many regulated markets. The specific symbol is not uniform across all U.S. states.
A warning statement is mandatory text related to issues such as intoxication, impairment, legal age, pregnancy, or child safety. Required wording, format, placement, and minimum size can vary by jurisdiction.
Opacity describes whether the package prevents the product from being visible from the outside. Some jurisdictions or product categories may require opaque packaging.
This matters when considering clear or frosted windows. A technically available window feature may not be appropriate for every target market.
Plain packaging is a regulatory concept most strongly associated with the Canadian cannabis market. It refers to restrictions on colors, graphics, branding, and mandatory information. It should not be confused with simply choosing a minimalist package design.
Batch, Lot, QR Code, and Variable Information
A batch number or lot number is a unique identifier used for product traceability, quality control, and recall management.
A QR code is a machine-readable code that can connect physical packaging with digital information such as a COA, product details, cultivation information, or brand content.
A Certificate of Analysis (COA) is a laboratory document containing test results for a specific product or batch.
When information changes between production runs, the packaging design should reserve an area for variable data rather than permanently incorporating every changing field into the main printed artwork. This is particularly relevant when planning custom cannabis label printing for multiple batches or SKUs.
Cannabis packaging requirements vary by jurisdiction, product type, package type, and sales format. Compliance should therefore be confirmed for the market where the finished product will actually be sold before artwork is finalized.
Purchasing and Manufacturing Terms Before You Request a Quote
Understanding packaging terminology becomes most useful when it improves the quality of a request for quotation.
MOQ, Sample, Prototype, and Lead Time
MOQ — Minimum Order Quantity is the minimum production quantity a manufacturer accepts for a particular package, material, printing process, or specification.
MOQ can change when the structure, printing process, tooling, or level of customization changes.
A sample is a physical package used to evaluate dimensions, material, structure, printing, finish, or function.
A prototype or pre-production sample is a sample made closer to the final specification before mass production.
Lead time is the time required to complete a defined stage of the project. Buyers should distinguish between sample lead time and mass-production lead time because they are separate stages.
Specification, Tolerance, Tooling, and QC
A packaging specification, or spec, is the documented set of requirements for the finished package. It can include dimensions, material, thickness, colors, printing, finish, closure, capacity, and functional details.
Tolerance is the permitted manufacturing variation around a specified dimension, position, color, or other measurable requirement.
Tooling refers to production tools, dies, molds, plates, cylinders, or other setup components needed for a particular manufacturing or printing process.
QC — Quality Control refers to inspections used to check whether production meets the approved specification. Depending on the package, this may include printing, color, dimensions, sealing, zipper function, structure, finish, appearance, and quantity.
Final approval is the point at which the confirmed artwork, dimensions, material, finish, and sample or specification are accepted for mass production.
A useful cannabis packaging RFQ should provide as much of the following information as possible:
- Product type
- Packaging format
- Required dimensions or capacity
- Order quantity
- Target market
- Material or barrier requirements
- Closure and functional features
- Artwork status
- Printing and finish preferences
The clearer the specification, the easier it is to compare quotations and reduce changes after sampling.
Sustainable Cannabis Packaging Terms and Buyer FAQs
Sustainability terminology is frequently used in packaging discussions, but several common terms describe completely different things.
PCR — Post-Consumer Recycled content refers to material recovered after consumer use and incorporated into new material.
Recyclable packaging refers to packaging intended to be collected and reprocessed through an applicable recycling system. Actual recyclability depends on the complete package structure and the recycling infrastructure available where it is discarded.
Biodegradable describes material capable of breaking down through biological processes. The word alone does not define the time, environment, or conditions required.
Compostable refers to material designed to break down under specified composting conditions. It is more specific than the general term biodegradable.
Bio-based describes the source of the material. It means some or all of the feedstock comes from renewable biological sources rather than only fossil-based sources. Bio-based does not automatically mean biodegradable or compostable.
Mono-material packaging is designed primarily around one material family, such as PE or PP, to simplify material recovery compared with difficult-to-separate multilayer structures.
These terms are not interchangeable. A package can contain PCR without being widely recyclable, and a bio-based material is not automatically compostable.
What Is the Difference Between Child-Resistant and Tamper-Evident Packaging?
Child-resistant packaging is designed to make access difficult for young children while remaining usable by adults. Tamper-evident packaging provides visible evidence that a package has already been opened or altered. A cannabis package may use both features, but one does not replace the other.
What Does MOQ Mean in Cannabis Packaging?
MOQ means minimum order quantity. It is the smallest quantity a manufacturer will produce under a specific packaging configuration. MOQ can vary according to material, package structure, printing method, tooling, and customization requirements.
What Is a Packaging Dieline?
A packaging dieline is the structural artwork template used to position graphics correctly relative to cut lines, folds, seals, zippers, windows, and other package features. It is one of the key files needed before custom packaging artwork can be prepared for production.
What Should I Tell a Cannabis Packaging Manufacturer Before Requesting a Quote?
Provide the product type, packaging format, dimensions or capacity, order quantity, target market, required functions, artwork status, printing preferences, surface finish, and any known compliance requirements.
A cannabis packaging glossary is most useful when the definitions lead to better specifications. Knowing the difference between CR and tamper-evident, Mylar and laminate, OTR and WVTR, or artwork and production-ready files makes it easier to choose the right structure and communicate clearly with a manufacturer.
Feel U provides custom cannabis packaging design, sampling, printing, manufacturing, quality control, and delivery support for Mylar bags, boxes, jars, pre-roll packaging, labels, and other custom formats. If you are developing a new package or preparing an RFQ, contact us to discuss the structure, materials, printing, and production requirements for your project.
