Some everyday items should never go in the household bin: batteries, fluorescent bulbs, old medicines, mercury thermometers, paint, garden and cleaning chemicals, electronics, lighters, fireworks, tyres and large appliances. They can leak toxic substances, start fires in bin lorries and sorting plants, or waste valuable materials. Most can go to a household hazardous waste (HHW) site, a recycling centre, or a shop or pharmacy take-back scheme instead.
Below, the 19 items are grouped by type, with what makes each one a problem and where it should go. Rules differ between countries and even between neighbouring towns, so treat this as a starting point and check your local council or waste authority for the final word.
Batteries, light bulbs and electronics
1. Batteries
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Lithium-ion batteries, found in phones, laptops, vapes, e-bikes and power tools, are now the biggest worry. The US Environmental Protection Agency says they should not go in household rubbish or recycling bins, because a crushed or damaged cell can spark and set a bin lorry or sorting plant alight. Tape over the terminals, bag each battery separately and take it to a battery drop-off point or hazardous waste site; Call2Recycle and Earth911 have locators in the US. Rules for ordinary alkaline batteries vary: some places accept them in general waste, while in the UK and EU most shops that sell batteries also offer a collection box, which is the better choice everywhere.
2. Light bulbs
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Old incandescent and halogen bulbs contain no hazardous materials and can usually go in general waste, wrapped so the glass cannot cut anyone. Fluorescent tubes and compact fluorescent lamps (CFLs) are different: they contain a small amount of mercury and belong at a recycling centre or retailer collection point. LED bulbs contain electronic components, so in many countries they are collected with small electrical items; the packaging usually says how.
5. Computers and electronics
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Phones, laptops, televisions, printers, chargers, cables and games consoles are known as e-waste. They contain substances such as lead, mercury, cadmium and brominated flame retardants, along with recoverable metals like gold, silver, copper and palladium. Use a certified electronics recycler (in the US, e-Stewards lists them), a manufacturer or retailer take-back scheme, or your local recycling centre. Wipe your data first, and remove batteries if the device allows it.
Medicines and mercury
3. Unused or expired medicines
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Medicines thrown loose in the bin can be found and misused, and those poured down the sink can reach rivers because water treatment does not remove every drug. The US Food and Drug Administration recommends a take-back option first: many pharmacies and some police stations accept old medicines, and prepaid mail-back envelopes exist. In the UK, any community pharmacy will take unwanted medicines back.
If no take-back is available, the FDA says to check its short "flush list" of especially dangerous drugs, such as some opioids, which should be flushed. Everything else can be mixed with something unappealing, like used coffee grounds or cat litter, sealed in a bag and put in the bin. Do not crush tablets, and scratch your details off the label. If you are unsure about a particular medicine, ask your pharmacist or doctor.
12. Glass mercury thermometers
epa.gov
Wikimedia
Older silver-bulb thermometers contain liquid mercury, which gives off a toxic vapour if the glass breaks. That is far more likely in a bin bag or a compactor than in a drawer. Take an unwanted mercury thermometer to a hazardous waste site. If one breaks at home, the EPA publishes step-by-step clean-up advice; the key points are to ventilate the room, keep children and pets away, and never use a vacuum cleaner or broom, which spread the mercury.
Paints, chemicals and aerosols
8. Paints and wood stains
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Solvent-based paints, varnishes, wood stains, thinners and strippers are flammable and toxic. Take them, and any rags soaked in them, to a hazardous waste site. Water-based emulsion paint is less risky: many councils ask you to let small amounts dry out with the lid off, or mix in sand or a paint hardener, before binning the solid can. Community paint reuse schemes will often take half-used tins.
9. Lawn and garden chemicals
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Weedkillers, insecticides, slug pellets and some fertilisers can poison soil, water and wildlife if poured away or binned. The simplest option is to use them up as directed or give them to a neighbour who will. Otherwise, keep them in their original labelled containers and take them to a hazardous waste site. Some older products are now banned, which is another reason not to keep them for years.
14. Cleaning products
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Groovygreenlivin
Bleach, drain cleaners, oven cleaners and strong descalers are designed to be harsh. Large amounts poured away can damage pipes and harm aquatic life, and mixing products such as bleach and ammonia-based cleaners releases dangerous gases. Use them up, give unopened ones away, or take leftovers to a hazardous waste collection. Many empty plastic bottles can be rinsed and recycled.
19. Glue and adhesives
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Solvent-based glues and construction adhesives contain chemicals that should not reach landfill or drains in liquid form. Small amounts can be left to harden completely, or spread thinly on old cardboard to dry, and then binned. Larger quantities and anything still liquid should go to a hazardous waste site.
4. Aerosol cans
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Aerosols are pressurised and may hold flammable propellants, so a can that still contains product can explode if crushed or heated. Fully empty cans are accepted for recycling by many councils, since they are mostly steel or aluminium. If you cannot tell whether a can is empty, or it held something like spray paint or insecticide, treat it as hazardous waste. Never pierce or flatten one.
Fire hazards: lighters and fireworks
10. Lighters
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A disposable lighter with any fuel left inside can ignite in a bin or a compactor. Only a completely empty lighter belongs in general waste; partly full ones, butane refill canisters and refillable lighters should go to a hazardous waste site. Refilling a refillable lighter is cheaper and creates less waste than buying new disposables.
18. Unexploded or dud fireworks
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Never relight a dud firework or put it straight in the bin. The usual advice is to leave it alone for a good while, then soak the firework thoroughly in a bucket of water before handling it. Ask your local fire service or council how to get rid of it; some fire services collect damaged or unused fireworks.
Kitchen and bathroom leftovers
7. Bacon fat and cooking oil
Wikimedia
Fat, oil and grease poured down the sink cool and stick to pipes, and in sewers they combine with wet wipes to form "fatbergs" that water companies have to dig out by hand. Let small amounts cool and solidify, scrape them into a sealed container and put it in the food or general waste, depending on local rules. Larger amounts of used oil are accepted at many recycling centres and can be turned into biodiesel. Strained bacon fat also keeps in the fridge for cooking.
15. Cosmetics
incosmetics.co.uk
Nail polish, nail polish remover, hair dye and some perfumes contain solvents or are flammable, so they count as household hazardous waste in many areas. Cosmetic packaging is often hard to recycle because pumps, mirrors and mixed plastics are combined. Several beauty brands and retailers run "empties" take-back schemes, some accepting other brands' containers; Origins has long been one of them, but check current terms before you go.
11. Water filter cartridges
Preserve Products
Jug filter cartridges such as Brita's are made of plastic filled with activated carbon and ion-exchange resin, so they cannot go in normal recycling. Manufacturers have run take-back schemes for them for years, sometimes through partner companies, and the details change by country. Check the brand's own website for the current drop-off or mail-back option.
6. Hair from people and pets
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Wikimedia
Hair is not hazardous, but it is rich in nitrogen and breaks down slowly in a compost heap, so it is better used there than sent to landfill. If you are cutting off a long length of healthy hair, charities that make wigs for children with hair loss, such as Locks of Love, may accept it; they set minimum lengths, often around 10 inches, and conditions on colour-treated hair, so read their current rules first.
13. Plastic bags and film
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Plasticfilmrecycling
Thin plastic bags, bread bags, cling film and zip-lock bags jam the machinery at many recycling plants, which is why most kerbside schemes refuse them. Many supermarkets offer collection points for soft plastics, and some councils are now adding film to household collections. Reusing bags and switching to cloth or paper alternatives cuts the problem at the source.
Tyres and large appliances
16. Tyres
Wikimedia
Dumping tyres is illegal in most countries, and whole tyres are banned from landfill across the EU and in many US states. They trap water that breeds mosquitoes and burn intensely if set alight. Tyre fitters and garages usually take old tyres when they fit new ones, often for a small fee, and recycling centres accept them too. Recycled rubber ends up in playground surfaces, sports pitches and road materials.
17. Old appliances
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Fridges, freezers and air-conditioners contain refrigerant gases and insulating foams that can damage the ozone layer or act as powerful greenhouse gases if released. They need specialist treatment. Retailers delivering a new appliance often collect the old one, councils run bulky waste collections, and working appliances can be donated to charities or reuse shops.
How to find the right drop-off near you
- Start with your council or city website. Search for "household hazardous waste" or "recycling centre" plus your town. Many list exactly what each site accepts.
- Use retailer schemes. Battery boxes, electrical take-back and pharmacy returns are often closer than a waste site.
- Keep products in their original containers so staff know what they are handling, and never mix chemicals.
- Store hazardous items safely while you wait, out of reach of children and pets and away from heat.
- Buy less of the problem. Rechargeable batteries, water-based paints and buying only what you need all mean less to throw away later.
A few extra minutes at the recycling centre keeps toxic material out of soil and water and makes waste collection safer for the people who handle it.
Sources: US EPA: Used lithium-ion batteries; US FDA: Disposal of unused medicines; US EPA: Mercury spills; e-Stewards recycler finder; photos from Wikimedia Commons and the credited sites; original list from InspireAmaze.
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