We’ve all been there: you scrub your fridge until it’s spotless, only to open the door a day later and notice that same unpleasant odour has crept back in. It’s frustrating, especially when you’ve already invested the time to clean. The truth is, there are a few hidden reasons smells linger — and understanding them is the key to keeping your fridge fresh for good. Investing in quality appliances, like those from https://www.winnings.com.au/brands/liebherr, can also make a difference, but even the best fridge needs proper care.
The Science of Lingering Smells
Bad odours don’t just sit in the air — they cling to surfaces. Plastic shelves and compartments are porous, which means they can absorb smells from strong foods like onions, seafood, or leftovers. Even if the food is long gone, the scent can remain trapped in the materials of your fridge.
Hidden Food Residue
A quick wipe-down might look thorough, but crumbs, spills, and microscopic particles often slip into corners, door seals, and drawers. Over time, bacteria and mould can grow in these spots, creating persistent smells that return no matter how often you clean.
Fix: Remove shelves, drawers, and door seals where possible and wash them separately. A mild solution of baking soda and warm water is excellent for neutralising odours without damaging surfaces.
Temperature Troubles
A fridge that isn’t set at the right temperature can also contribute to smells. Warmer environments allow bacteria to grow faster, while overly cold settings may cause condensation that encourages mould.
Fix: Aim to keep your fridge between 3–4°C for optimal freshness. Regularly check the thermometer, rather than relying solely on dial settings.
Poor Air Circulation
Odours spread quickly when the air doesn’t circulate properly inside the fridge. Blocked vents or overcrowded shelves make it harder for fresh air to move around, trapping smells in certain areas.
Fix: Avoid overloading the fridge and keep vents clear. Using airtight containers also prevents smells from escaping into the fridge air.
Forgotten Culprits
Sometimes, the source of the smell isn’t obvious. Check the drip tray underneath your fridge, where moisture can accumulate and grow bacteria. Spilled liquids that have seeped into cracks or behind drawers can also cause persistent odours.
Fix: Clean the drip tray and ensure drains are unclogged. Regular deep cleans, even of the less visible areas, will help prevent odour build-up.
Natural Deodorisers That Work
Even after a deep clean, a little ongoing help keeps smells at bay:
- Baking soda: Place an open box inside to absorb odours naturally.
- Activated charcoal: Excellent for long-term odour control.
- Coffee grounds: Absorb smells while adding a subtle fresh scent.
- Lemon slices: Add a light, natural fragrance while reducing bacteria.
When It’s Time to Upgrade
If you’re constantly battling smells despite your best efforts, your fridge may be past its prime. Older models often lack effective air filtration and advanced cooling systems, which help prevent odours in the first place. Modern fridges are designed with technology that controls humidity, circulates air evenly, and keeps food fresher for longer.
Keeping Freshness Lasting Longer
The key to a consistently fresh fridge isn’t just cleaning — it’s maintenance and prevention. Store food in airtight containers, wipe up spills immediately, and use natural deodorisers to keep odours at bay. With a little consistency, you’ll spend less time scrubbing and more time enjoying a fridge that actually smells clean.
Photo by Alex Qian: