The popularity of cannabis vape cartridges, also known as weed carts or THC cartridges has skyrocketed. These convenient, discreet devices offer a potent and flavourful way to consume cannabis oils.  When that happens, it’s essential to dispose of used cartridges responsibly to minimize environmental impact and avoid potential health hazards. Improper disposal can lead to contamination, injuries, and legal issues.

Proper disposal matters

THC cartridges contain materials like plastic, metal, glass, and residual cannabis oils that can be harmful if discarded improperly. 

• Environmental impact- Cartridge components can take years to decompose and may leach toxic substances into soil and water if sent to a landfill. Incineration can release dangerous fumes.
• Health and safety– Used cartridges with residual oils can be tempting to children or pets if left accessible. Punctured or damaged cartridges can cause injuries. Residual oils are also flammable.
• Legal compliance– Depending on local laws, throwing out weed carts in the regular trash may be illegal. Penalties can include fines or even criminal charges in some areas.
• Respect for the cannabis community– As the industry works to build legitimacy and trust, consumers need to model responsible behaviour. Proper disposal shows respect for the environment, public health and safety.

Steps for responsible disposal

1. Check with your dispensary 

The best place to start is the dispensary where you purchased your thc cartridge. Many have recycling or disposal programs for used carts, sometimes even offering perks or discounts for bringing them in. Call them or check their website to see if this is an option. If not, they can direct you to other local resources.

2. Separate the components

If the dispensary is not viable or you have numerous used cartridges stored up, you’ll need to dispose of them yourself. Start by taking the cartridge apart and separating the components:

• Unscrew the mouthpiece and set aside 
• Remove the cartridge from the battery
• If possible, pull out the inner tank from the outer casing
• Place the different materials (plastic, metal, glass) in separate piles

3. Clean the components 

• Soak the separated parts in warm, soapy water until clean.
• Rinse thoroughly and allow to dry completely.
• If water doesn’t do the trick, try soaking in rubbing alcohol.

Scraping with a tool may be needed for harsh residue. Wear gloves to protect your hands from sharp edges.

4. Recycle what you can

Once cleaned, check which components recycled based on your local guidelines. Typically, batteries, metal casings, and detached mouthpieces can be recycled electronically or in metal. If relatively clean and accepted plastics, plastic outer casings and inner tanks can often go in standard recycling bins. Glasses or ceramics are usually not accepted, with some exceptions. If in doubt, check with your local waste management service. Properly clean and sort any pieces headed for recycling.

5. Trash the rest mindfully

For any pieces that can’t be recycled, disposal in the household trash is usually acceptable once they are clean, dry and separated from other waste to avoid contamination. Please place them in a sealed bag or container before putting them in the garbage.  Please do not attempt to crush cartridges or put them down the drain, toilet, or garbage disposal, as this can cause injuries or damage to plumbing.