As the UK heads into its fourth heatwave of the year, homeowners are being urged to take extra precautions against one of the less glamorous side effects of hot weather – the smell from outdoor bins.
When temperatures rise, so does the speed at which food waste breaks down. This not only produces strong odours but also attracts unwanted pests such as flies, maggots and even rodents.
Now, waste management experts at BusinessWaste.co.uk have shared a simple and affordable tip that could make all the difference – and it costs just 65p.
The method involves sprinkling bicarbonate of soda into the bottom of the bin before adding rubbish.
The alkaline powder helps neutralise acidic substances released as food decomposes, creating a chemical reaction that reduces odour.
It also absorbs moisture – the foul liquid often referred to as “bin juice” – making the environment less appealing for bacteria that can contribute to bad smells.
Graham Matthews, waste management expert at BusinessWaste.co.uk, explained: “Keeping your wheelie bin clean reduces bad smells, germs, and stops pests. While it might not be the most glamorous job, spending time cleaning your bins every couple of months is a great way to stop insects like flies and maggots from taking over.
“There are some simple storage and disposal hacks that will prevent smells and pests at the source. Correct food waste disposal helps keep your bin clean, but it also means you’ll be doing your bit for the environment.”
Aside from the bicarbonate of soda trick, Matthews recommends storing wheelie bins in a cool, shaded spot whenever possible. Direct sunlight speeds up decomposition, so moving bins under a shelter, into a garage, or simply to a shaded corner can slow down the process.
Keeping the lid closed between collections is another effective step. An open bin lid allows more oxygen in, which can accelerate the activity of bacteria that produce strong smells. It also makes it easier for pests to get inside, disturbing the waste and, in the case of insects, laying eggs that worsen the smell.
Correct disposal of food waste is also key. Ideally, food scraps should be composted or placed in a separate food waste bin. Where this isn’t possible, sealing scraps in biodegradable bags or wrapping them tightly before putting them in the bin can help. Storing waste in a smaller container indoors and transferring it to the main bin closer to collection day further reduces the risk of smells developing.
Regular cleaning is essential, particularly in warmer months. For routine upkeep, a bucket of warm water, washing-up liquid and a cloth should suffice. For more thorough cleaning, experts suggest scraping out any grime with a trowel, hosing down the bin, applying antibacterial spray or bleach (or an eco-friendly alternative such as a mix of water, white vinegar and lemon juice), and leaving the solution to sit before rinsing and drying.
When cleaning, attention should be paid to all areas – the base, the sides, and the underside of the lid – to ensure bacteria and odour sources are removed completely. Allowing the bin to dry fully, either upside down or with a towel, helps prevent moisture from lingering and creating fresh smells.


