Expired Hand Sanitizers are Flammable, Regulated, and Definitely Not Trash

Large amounts of hand sanitizer are a hazardous waste. Learn how to safely and legally dispose of amounts big & small. Q&As include:

1. How was hand sanitizer once seen as a symbol of hygiene—and what changed?
2. What makes hand sanitizer a flammable liquids waste?
3. Can you just toss expired sanitizer in the rubbish?
4. What about businesses with large volumes of sanitizer?
5. Are all hand sanitizers safe?
6. What are some alternative ways to dispose of unwanted sanitizer?
7. Is recycling hand sanitizer an option?
8. What federal agencies regulate expired hand sanitizer disposal?
9. What’s a good checklist for sanitizer disposal?
10. Where can you get comprehensive advice & help concerning expired hand sanitizer disposal in Canada?

How was hand sanitizer once seen as a symbol of hygiene—and what changed?

Years ago, a bottle of hand sanitizer sitting next to a faucet reflected well upon whomever owned the sink. But then scientists started worrying that the ubiquity of hand sanitizer was aiding & abetting the Darwinian mutation of the target bacteria. I.e., the little blighters were becoming resistant to it.

COVID-19 only amplified this concern, as people stocked up on sanitizer like it was maple syrup in February.

As a result, nowadays a lot of expired hand sanitizer is getting thrown away. This is because people resist using it based on their eco-predilections, or they’re scaling back since the pandemic is a distant memory, or they’ve simply bought more of the stuff than they can ever use—probably all three.

So, cue the need for proper expired hand sanitizer disposal in Canada.

What makes hand sanitizer a flammable liquids waste?

Most sanitizers are 60–95 percent ethyl or isopropyl alcohol, classifying them as Class 3 Flammable Liquids. That means they’re not just a hygiene product—they’re a fire hazard. Thus, storing large quantities (think 100 litres or more) requires a flammable-liquid storage cabinet, even if the product is in small bottles.

Can you just toss expired sanitizer in the rubbish?

For small household amounts, yes. But it’s better to such to a local hazardous waste collection facility. But whatever you do, don’t pour it down the drain. That’s not just bad form—it’s dangerous. Dumping 100 litres of hazardous alcohol-based products into the sewer could cause flammable vapours to ignite. Imagine manhole covers flying skyward. (Bad visual. And the local constabulary will not be happy.)

What about businesses with large volumes of sanitizer?

Commercial quantities fall under hazardous waste regulations. COVID waste disposal in Canada is governed provincially, and mishandling it can lead to fines, lawsuits, and headlines you don’t want. If you’re sitting on a stockpile, get expert advice before making a move.

Are all hand sanitizers safe?

Nope. Some recalled products contain methanol or 1-propanol—neither approved for handwashing. This is good, since they both have a toxic effect on the skin. Consider:

• Unlike ethanol (think booze), methanol is a type of alcohol you definitely shouldn’t drink. Also called “wood alcohol” or “methyl alcohol,” it’s mostly used to make fuels, solvents, and antifreeze. It’s colourless, volatile, highly flammable, and it’s poisonous if consumed.
• 1-propanol is as a multi-purpose solvent used in industry, as well as in some cosmetics and antiseptics. Highly flammable, it’s dangerous to your eyes and harmful if swallowed. Inhalation can cause respiratory irritation and affect your central nervous system.

These rogue sanitizers are mendaciously labelled as containing only ethyl alcohol. And if your company has purchased a large volume of any one of them, you face the logistical challenge of how to dispose of it. Get expert advice!

What are some alternative ways to dispose of unwanted sanitizer?

Beyond traditional hazardous waste disposal, there are two lesser-known methods:

• Fuel blending— mixing sanitizer with other waste to recover alcohol as an energy source. It’s a way to turn flammable liquids waste into fuel.
• Incidental reduction—combining waste streams without aiming for a chemical reaction but ending up with a less hazardous mix. (Still, you’ll need to treat the individual components.)

(N.B. These methods aren’t clearly defined in Canadian regulations, and requirements (of course) vary by province. Always check with your local environmental authority. Or better yet, get expert advice.

Is recycling hand sanitizer an option?

Yes. And it can be more cost-effective than disposal. Recycling doesn’t require registering the sanitizer as hazardous waste, although transportation and treatment rules still apply. Again, the key is to get expert advice.

What federal agencies regulate expired hand sanitizer disposal?

You think there’s an easy answer to this, eh? Think again.

The disposal of expired hand sanitizer is regulated at multiple government levels, including federal, provincial, and municipal entities. This means that a combination of federal and provincial requirements governs disposal, including registration, tracking, labelling, and reporting. All that said:

The primary federal agencies involved are Environment and Climate Change Canada (ECCC) and Transport Canada.

•  ECCC is the main federal body responsible for overseeing hazardous waste management in the country. It also administers the Cross-border Movement of Hazardous Waste and Hazardous Recyclable Material Regulations, which controls shipments of hazardous waste across provincial and international borders.
• Transport Canada sets the regulations for safely transporting hazardous waste (e.g., proper packaging and labelling).
• Businesses must also comply with federal TDG regulations for transportation

But in addition to federal regulations, the day-to-day management and disposal of hazardous waste is handled by provincial and territorial governments, as well as local fire codes for storage and disposal.

Added to that, municipalities often have their own rules for the local collection of household hazardous waste. Typically:

• For households, proper disposal of expired hand sanitizer typically involves bringing it to a designated municipal household hazardous waste drop-off location.
• For businesses and larger generators, expired hand sanitizer must be collected and processed by a properly licensed hazardous waste management company in accordance with the rules of whatever province in which you’re trying to do business.

What’s a good checklist for sanitizer disposal?

Our experts have developed this one for your consideration:

For households:

• Check expiry date on all hand sanitizer bottles.
• Do not pour sanitizer down the drain or toilet.
• For small quantities, take to your local household hazardous waste facility.
• Avoid trashing large volumes—consult your municipality first.

For businesses:

• Identify volume (over 100 litres might require special storage).
• Store Class 3 flammable liquids in approved cabinets.
• Check for recalled products containing methanol or 1-propanol.
• Contact a licensed hazardous waste disposal company.
• Consider recycling or fuel blending options if permitted locally.
• Keep records of disposal for compliance.

For general safety:

• Never mix sanitizer with other chemicals unless professionally advised.
• Label all containers clearly.
• Follow provincial and municipal guidelines for hazardous alcohol-based products.

Where can you get comprehensive advice & help concerning expired hand sanitizer disposal in Canada?

Although it might not seem so at first blush, hand sanitizers are considered a hazardous waste. And in almost all cases, it’s provincial agencies—not federal ones—that handle enforcement and interpretation of hazmat law. So, rules vary, and missteps can be expensive, litigious, and time-consuming.

Whether you’re a homeowner with a few expired bottles or a business with a warehouse full of the stuff, proper expired hand sanitizer disposal in Canada is essential.

Don’t take chances! Get expert advice.