Cannabis & CBD
Nitrogen Generators for Cannabis Packaging, Pre-Roll, and Lab Processing
On-site nitrogen for cannabis flower packaging, pre-roll fill, edibles and concentrates, plus extraction lab process gas. 99.5% to 99.9% purity feeding mylar pouch fillers, glass jar lines, vacuum ovens, rotary evaporators, and reactor inerting. Stops THC-to-CBN oxidation, preserves terpene profile, and replaces delivered nitrogen with on-site supply at up to 90% lower gas cost. Most operators pay back in 12 to 14 months.
What we do
A cannabis nitrogen generator produces inert nitrogen gas on-site for flower packaging, pre-roll fill, edible and concentrate packaging, and extraction lab process gas. Gas Generation Solutions designs and installs nitrogen systems for cannabis cultivators, processors, edibles manufacturers, multi-state operators, hemp and CBD packagers, and extraction labs across the United States, Mexico, and Canada. These systems sit beneath our broader food grade nitrogen generator line and use the same PSA core, food grade filtration, and audit-ready documentation.
Gas Generation Solutions has been in business since 1979. Our cannabis systems cut gas costs by up to 90% versus delivered nitrogen and most pay back in 12 to 14 months. The same generator that flushes mylar pouches and pre-roll tubes can purge a vacuum oven, blanket a rotary evaporator, and inert a reactor, so one investment covers both packaging and the lab.
Deployed Systems
Cannabis nitrogen generators running in production at cultivator, processor, and lab sites.
Cultivator install · Flower packaging
Mylar pouches and glass jars
On-site nitrogen at 99.5% purity for THC and terpene preservation across flower SKUs.
N-15 · Pre-roll and pouch fill
Mid-size processor
Compact PSA generator feeding pre-roll tube fill and pouch flush stations from a single source.
Canna Purge N2 · Lab and craft scale
110V turn-key with integrated compressor
Vacuum oven purging, rotary evaporator and reactor inerting, plus packaging from one wall-mounted unit.
Applications
Nitrogen across cannabis packaging and the extraction lab
A correctly sized on-site generator covers both the packaging room and the lab from one supply, so processors do not need separate gas accounts for flower fill and post-extraction purging.
Flower Packaging
Mylar pouches, glass jars, doob tubes. Headspace flush before sealing.
Pre-Roll Packaging
Single tubes and multi-pack tins. N2 fill on automatic pre-roll cone fillers.
Edibles & Concentrates
Gummy and chocolate inerting. Live rosin, shatter, and wax jar headspace flush.
Vacuum Oven Purging
Post-extraction solvent removal. N2 sweep through chamber during pull-down and break-vacuum.
Rotovap & Reactor Inerting
Rotary evaporator cold trap protection. Reactor blanketing during winterization and decarb.
Cold Storage & Curing
Bulk flower totes and curing containers. Inert blanket reduces oxygen exposure during long-hold storage.
One generator, packaging plus lab. The same PSA system that flushes mylar pouches in the packaging room can purge a vacuum oven and inert a rotary evaporator in the lab. Buying delivered nitrogen for both ends of the operation costs more than a single on-site generator and creates two delivery accounts to manage.
Why nitrogen for cannabis
Stops THC oxidation. Holds the terpene profile.
Cannabinoid stability
THC degrades to CBN under oxygen, light, and heat
Δ9-THC is the primary psychoactive cannabinoid in dried flower. When exposed to oxygen, it slowly oxidizes into cannabinol (CBN), which has roughly one tenth the psychoactive potency. Light and heat accelerate the reaction. Headspace oxygen in a sealed package is the largest controllable driver.
- Published flower stability data shows Δ9-THC losses on the order of 15 to 20 percent over 100 days at room temperature in air, with continued decline over a year.
- Nitrogen flush plus opaque packaging cuts oxygen contact and blocks UV at the same time. Both drivers go away in one step.
- CBD oxidizes too, though more slowly than THC. Hemp and CBD products benefit from the same approach.
- Pre-rolls and milled flower degrade fastest because surface area exposed to oxygen is highest.
Terpene preservation
Holds the volatile aroma compounds that define each strain
Strain character is mostly terpenes. They are volatile, light molecules that escape headspace easily and oxidize on contact with air. Two losses run in parallel: volatilization through headspace exchange and oxidative breakdown of what remains.
- Headspace flush with N2 displaces the oxygen that would oxidize remaining terpenes.
- Sealed barrier film and lined glass slow volatile escape after the flush.
- Net effect: aroma, flavor, and entourage profile hold longer in distribution and on the shelf.
Purity & formats
99.5% to 99.9% nitrogen across every cannabis pack format
Cannabis purity tiers
Two tiers cover flower, pre-roll, edibles, and concentrates
5,000 ppm O2
Standard cannabis tier. Flower mylar pouches, glass jars, doob tubes, pre-roll tubes and tins, edibles, concentrate jars, and most lab purging.
1,000 ppm O2
Premium tier. Extended-shelf flower brands, high-terpene cultivars, premium concentrates, long-hold bulk storage, and demanding extraction lab work.
Pack format coverage
From 1g flower pouches to bulk processor totes
- Mylar flower pouches — 1g, 3.5g (eighth), 7g, 14g, 28g (ounce). Headspace flush before heat seal.
- Glass flower jars — child-resistant lids with N2 dosing into the headspace before close.
- Pre-roll doob tubes — single-cone tubes with snap-cap or screw-top.
- Pre-roll multi-pack tins and tubes — 5-pack, 10-pack tins; full multi-cone fill before seal.
- Concentrate jars — live rosin, shatter, wax in 1g and sub-gram screw-top jars; small headspace, high terpene impact.
- Edibles primary and secondary — gummy and chocolate inerting; opaque secondary cartons for extended hold.
- Vape cartridge boxes — secondary packaging for retail display, mainly oxidation control during dispensary stocking.
- Bulk processor totes — 1 lb, 5 lb, 10 lb totes for inter-facility transport and curing hold.
Canna Purge N2
A turn-key nitrogen generator built for the cannabis lab
Standalone, 110V, plug-in. The Canna Purge N2 is a self-contained nitrogen system designed specifically for cannabis processors and craft labs. The integrated air compressor, PSA generator, and 30-gallon nitrogen buffer tank ship as one unit. No three-phase power, no separate compressor purchase, no custom plumbing run.
Standard 110V outlet
No three-phase electrical service or panel work.
Integrated compressor
Skip the air compressor purchase, install, and maintenance.
30-gallon buffer tank
Built for vacuum oven pull-down and short-burst process demand.
Two 10 ft hose sections
Mount the generator on the wall in one room and put the buffer tank in another.
Designed for
- Vacuum Ovens
- Rotary Evaporators
- Reactors
- Packaging
- Product Storage
Equipment compatibility
Built for cannabis packaging lines and extraction labs
Our nitrogen generators supply both the packaging room and the lab. Each machine has its own inlet pressure, flow, and purity spec; we review the spec sheet, match the generator output, and confirm compatibility before quoting.
Sizing & ROI
Sized to your real demand, paid back in 12 to 14 months
Cannabis operation tiers
Typical nitrogen consumption ranges
Lab & craft
Canna Purge N2 scale. Single vacuum oven, rotary evaporator, plus low-volume packaging at the same site.
Mid-size processor
One to two packaging lines plus shared lab demand. Common single-state operator footprint.
Multi-line processor
Multiple flower SKUs, pre-roll lines, edibles, and concentrate fill running concurrently.
MSO & whole-facility
Multi-state operator central plant. Multiple packaging suites, full extraction lab, and bulk storage inerting from one source.
Our free flow meter rental with cellular data logger measures actual demand across packaging and lab over days or weeks of normal production. Measured data drives sizing instead of nameplate estimates that overstate demand.
Cost & payback
Up to 90% lower gas cost vs delivered nitrogen
12–14 mo
Typical payback
20+ yr
Service life
$10,000 to $200,000+ system price range. Most cannabis processors invest between $15,000 and $80,000.
Delivered nitrogen for cannabis carries cylinder rental, dewar demurrage, hazmat fees, low-pressure minimums, and 2 to 8 percent per day boil-off losses on idle liquid tanks. On-site generation eliminates every line item. Recurring operating cost is electricity for compressed air plus routine filter changes.
Compliance
State cannabis regulations and Hemp / CBD federal rules
Cannabis operators are licensed at the state level, with track-and-trace, product testing, and packaging rules set by each state. Nitrogen is an inert process gas and is not part of cannabis ingredient regulation. Hemp and CBD products under 0.3% Δ9-THC are federally legal under the 2018 Farm Bill, and nitrogen is listed as Generally Recognized As Safe under FDA 21 CFR 184.1540 for those food and supplement applications.
- Inlet filter trains capture oil, water, hydrocarbons, and particulates the same way as our food grade systems.
- Inline oxygen analyzers at point of use verify purity continuously, generating audit-ready logs.
- Documentation pack includes commissioning records, purity verification reports, filter change logs, and maintenance history.
- Hemp and CBD operators can document FDA GRAS compliance for nitrogen the same as any other food packager.
Maintenance
Three filter changes a year, no service contract required
Cannabis nitrogen generators require minimal routine maintenance. Plant or lab personnel perform filter changes themselves. Annual filter cost is typically a few hundred dollars depending on system size.
- Every 3 months: water and dirt filter
- Every 6 months: oil filter, plus valve and safety device inspection
- Every 12 months: charcoal final filter
- Sealed sieve beds: no top-off required under normal operation
Competitive note: systems built with flanged sieve beds typically need sieve top-off every eight to ten years, which is a significant hidden cost over a 20-year life. Sealed beds avoid that line item entirely.
Related
Cannabis sits inside our broader food and beverage nitrogen line
Same generators, same food grade filtration, same audit documentation. The cornerstone page covers F&B at the segment level; sideways links go to other packaging applications with similar oxidation chemistry.
Cornerstone
Food Grade Nitrogen Gas Generators
Food Packaging & MAP
99.5%Modified atmosphere packaging across all food formats. Blend ratios and gas blender integration.
View pageCheese Packaging
99.5–99.9%Shredded, sliced, block, grated, bulk cheese. 60/40 and 70/30 N₂/CO₂ MAP blends.
View pageSnack Food Packaging
99.5%Chips, pretzels, crackers, popcorn, extruded snacks. Rancidity prevention.
View pageCoffee Packaging
99.5%Whole bean, ground, and pod packaging. Oxidation and rancidity control for roasted coffee.
View pageSalad & Lettuce Packaging
99.5%Respiration-rate-balanced MAP for fresh-cut produce.
View pagePet Food Packaging
99.5%Dry dog and cat food, treats, birdseed, and specialty pet products.
View pageFrequently asked
Questions about cannabis nitrogen generators
Why does cannabis need nitrogen flush packaging?
Cannabis loses potency and aroma when exposed to oxygen. Δ9-THC oxidizes into CBN, which has roughly one tenth the psychoactive potency, and volatile terpenes like myrcene, limonene, and pinene escape and oxidize. Light and heat accelerate both losses. Replacing the air in the package with nitrogen removes the largest controllable driver of degradation, so flower, pre-roll, and concentrate products retain their potency and strain character through distribution and shelf life.
What purity does cannabis packaging require?
Most cannabis packaging runs at 99.5% nitrogen purity, which leaves 5,000 ppm of residual oxygen and is the same standard used across food and beverage packaging. Premium and extended-shelf brands and high-terpene cultivars step up to 99.9% (1,000 ppm residual oxygen). Cannabis flower is not respiring product, so there is no anaerobic risk and no benefit pushing purity higher than 99.9%. Higher tiers belong to electronics, laser cutting, and semiconductor work.
Will nitrogen flushing extend shelf life of cannabis flower?
Yes. Published flower stability studies show Δ9-THC losses on the order of 15 to 20 percent over 100 days at room temperature in air, with continued decline over a year. Nitrogen flush packaging combined with opaque film or lined glass cuts oxygen exposure and blocks UV at the same time, holding cannabinoid potency and terpene profile substantially longer. Cool, dark, low-humidity storage paired with N₂ flushed packaging is the practical maximum for retail flower shelf life.
Can the Canna Purge N2 run on standard 110V power?
Yes. The Canna Purge N2 is designed for standard 110V single-phase power so it can drop into a craft processor or extraction lab without three-phase electrical service or panel work. The integrated air compressor and 30-gallon nitrogen buffer tank ship as one unit. Two 10 ft hose sections allow the generator to mount on a wall in one room while the buffer tank lives in another, keeping the compressor noise away from the process area.
What can a Canna Purge N2 do besides packaging?
The same generator that flushes mylar pouches and pre-roll tubes can purge a vacuum oven during post-extraction solvent removal, blanket a rotary evaporator cold trap during winterization, inert a jacketed reactor during decarboxylation, and protect bulk concentrate or flower in cold storage. One unit covers both the packaging room and the lab, which is the main reason cannabis processors invest in on-site generation rather than running two separate gas accounts.
How does on-site nitrogen compare to delivered nitrogen for cannabis operations?
On-site generation produces nitrogen at the same purity and filtration as delivered food grade nitrogen but at up to 90% lower cost. Delivered nitrogen carries cylinder rental, dewar demurrage, hazmat fees, low-pressure minimums, and 2 to 8 percent per day boil-off losses on idle liquid tanks. Cannabis operators also avoid the scheduling exposure of running out of cylinders mid-packaging-shift. On-site supply is constant, sized to actual measured demand, with electricity for compressed air as the only recurring operating cost.
Is on-site nitrogen acceptable under state cannabis regulations?
Yes. State cannabis programs regulate the cannabis product itself through track-and-trace, lab testing for potency, microbials, and residual solvents, and packaging rules. Nitrogen is an inert process gas and is not part of cannabis ingredient regulation. Hemp and CBD products under 0.3% Δ9-THC are federally legal under the 2018 Farm Bill, and nitrogen is listed as Generally Recognized As Safe under FDA 21 CFR 184.1540 for those food and supplement uses. Our systems generate audit-ready documentation for either context.
What is the typical payback for a cannabis nitrogen generator?
Cannabis nitrogen generators typically pay back in 12 to 14 months, the same range as other food and beverage on-site systems. Price ranges from about $10,000 for a Canna Purge N2 lab unit to over $200,000 for a multi-state operator central plant. Most cannabis processors invest between $15,000 and $80,000. Service life is 20 years or more, and recurring operating cost is electricity for compressed air plus routine filter changes.
Size your cannabis nitrogen system
Borrow a flow meter. Measure your real packaging plus lab demand.
We rent a flow meter at no charge, sized for cannabis packaging and extraction service. The meter installs inline between your current nitrogen supply and your packaging or lab equipment, with a cellular data logger so you can view flow rate and pressure in real time on our dedicated server. No WiFi required at your facility. Once we have a few weeks of data covering both packaging shifts and lab pulls, we size the generator and storage to your real demand schedule, not a nameplate guess. Most cannabis processors recover their full system investment inside 14 months.
Already know your demand? Send flow, purity, and pressure with your packaging line and lab equipment list. We will return a complete quotation the same day.