How to Recycle Propane Tanks
One-pound camping cylinders, 20 lb grill tanks, and larger vessels. Two very different disposal problems that share a page.
Quick answer
Never in the trash or curbside, since a cylinder that reads empty still holds pressure. A 20 lb grill tank is easy: exchange it, refill it, or hand it to a dealer, and Blue Rhino asks you to write R or RECYCLE on a tank you want retired. The 1 lb camping cylinders are the genuine problem, with almost no disposal route, which is why California and Vermont have legislated on them.
- Recyclable
- Yes
- 1Do not remove the valve yourself; purging and valve removal is a propane dealer's job
- 2Do not puncture, crush, incinerate, or throw a cylinder in the trash, even one you believe is empty
- 3Close the valve fully and leave any plastic cap in place
- 4Check the collar for damage, deep rust, or an expired requalification date
- 5Transport upright and secured, in a ventilated space rather than a closed trunk
- 6Take grill cylinders to a dealer, exchange cage, or household hazardous waste site rather than handling them yourself
- Propane dealers and refill stations, which take tanks out of service
- Tank exchange cages at hardware stores and supermarkets
- Household hazardous waste facilities, including for 1 lb cylinders in many counties
- Scrap metal yards, but only for cylinders already purged and devalved by a professional
A cylinder that reads empty still holds residual propane and vapor pressure, which is why dealers, not homeowners, purge and devalve them. For 20 lb grill tanks the routes are good: exchange cages take your old tank when you swap, dealers refill and inspect, and Blue Rhino's own instruction for a tank you want taken out of service is to write R or RECYCLE on it and leave it at an exchange display. Federal transport rules require a cylinder to be requalified 12 years after manufacture and then at intervals of 5, 7, 10, or 12 years depending on the method used, so an out-of-date tank is refused for filling but still accepted for exchange or recycling. Note that AmeriGas's own blog describes a flat 10-year interval, which does not match the regulation. One-pound camping cylinders are the real gap: they were designed as disposable, most programs will not take them, and they are a documented hazard in trash and at transfer stations. California's SB 1280 requires them to be refillable or reusable from January 1, 2028, and Vermont covers them under its household hazardous waste producer responsibility program. Refillable 1 lb cylinders and adapter hoses already exist and are the practical answer now.
The steel in a propane cylinder is entirely recyclable, and a 20 lb tank is a substantial piece of scrap, but only after professional purging and valve removal, which is what keeps them out of ordinary scrap streams. The disposal hazard is real rather than theoretical: cylinders thrown into trash trucks and transfer stations have caused fires and explosions, which is why haulers refuse them. One-pound cylinders multiply the problem by volume, since they are used once and discarded in large numbers, and the legislative response in California and Vermont exists precisely because no consumer recycling route emerged on its own.
Not Accepted
- Any cylinder in curbside trash or recycling, including 1 lb camping cylinders
- Cylinders at scrap yards that still have valves attached
- Punctured, crushed, or burned cylinders
- Out-of-requalification tanks for refilling, though exchange and recycling still take them
- Cylinders transported in a sealed trunk or passenger space rather than upright and ventilated
- Residual liquid propane and vapor pressure, present even in a tank that feels empty
- Pressurized steel vessel, which can rupture if heated or crushed
- Valve assemblies that can shear off if the cylinder is dropped
How do I dispose of a propane tank?
Never in the trash or curbside, since a cylinder that reads empty still holds pressure. For a 20 lb grill tank, exchange it, refill it, or hand it back to a dealer. Blue Rhino asks you to write R or RECYCLE on a tank you want retired rather than swapped.
What do I do with small camping cylinders?
These are the genuine problem, because the 1 lb cylinders have almost no disposal route in most areas. California and Vermont have legislated on them for that reason. Check whether your household hazardous waste program takes them, and consider a refillable cylinder instead.
Can I remove the valve to make a tank safe?
No. Purging a cylinder and removing its valve is a propane dealer's job, and doing it yourself is genuinely dangerous. Hand the tank over intact and let someone with the right equipment make it safe.
Is an empty propane tank actually empty?
Not in the way that matters. A cylinder that stops feeding a burner still contains propane vapour under pressure, which is why it cannot be crushed, landfilled, or put in a scrap bin as ordinary metal.
Can I exchange a rusty or old tank?
Usually yes, and exchange is the easiest route for a tank past its useful life, since the cage program takes it out of circulation. Tanks carry an expiry date and need requalification after a period, so an old one may be refused for refilling but accepted for exchange.
Do scrap yards take propane tanks?
Some do, but only once the tank has been properly purged and the valve removed by a dealer. Turning up with a sealed cylinder will get you turned away, because a pressurized vessel in a shredder is a serious hazard.
Recycling centers that accept Propane Tanks
RecycleFind lists recycling centers that accept propane tanks. Open a listing for hours, contact info, and directions.