The Problem: Lingering Odours in Your Microwave
Even with regular cleaning, your microwave oven can develop stubborn smells, often from burnt food, strong-flavoured ingredients, or simply general use. These odours can transfer to your food, making meals less pleasant. Understanding the cause helps in selecting the right approach to restore freshness to your appliance.
The most common culprits include splattered food that has been baked on, overheating certain items leading to burnt plastic or food smells, or even moisture trapped inside leading to a musty scent. Sometimes, strong spices or fish can leave residual aromas that linger for days. Effectively addressing these smells requires more than just a quick wipe down; it involves neutralising the odour molecules at their source.
Knowing how to get smell out of microwave oven is a vital skill for maintaining a clean and pleasant kitchen environment. This article breaks down the most effective techniques, focusing on methods that are safe, efficient, and use readily available household items, ensuring you can tackle the issue without needing specialised cleaning agents.
Natural Deodorising Methods for Your Microwave
Several natural ingredients possess excellent deodorising properties, making them ideal for tackling microwave smells. These methods are safe for food contact surfaces and avoid introducing harsh chemicals into your appliance.
Citric Power: Lemon or Vinegar Steam
One of the most popular and effective ways to refresh a microwave is by steaming it with a solution of water and an acidic agent. Combine approximately 250ml of water with either the juice of half a lemon, a few lemon slices, or 2 tablespoons of white vinegar in a microwave-safe bowl. Place the bowl inside the microwave and heat on high power for 3-5 minutes, or until the water is boiling vigorously and steam fills the interior. Let the bowl sit inside the closed microwave for another 5-10 minutes; the steam will loosen grime and the acid will help neutralise odours. Carefully remove the bowl (it will be hot) and wipe down the interior surfaces with a damp cloth. This process is also effective for general cleaning.
Baking Soda: The Odour Absorber
Baking soda is renowned for its ability to absorb and neutralise unpleasant smells. For a passive approach, place an open box or a small bowl filled with baking soda inside the microwave when it's not in use. Leave it overnight or for a few days to absorb persistent odours. For a more active cleaning method, create a paste by mixing baking soda with a small amount of water. Apply this paste to any stubborn stained or smelly areas inside the microwave, let it sit for 5-10 minutes, then wipe it clean with a damp cloth. This method is particularly useful for tackling burnt smells.
Coffee Grounds: Aromatic Neutralisation
Used coffee grounds can also serve as an effective deodoriser. Ensure the grounds are dry, then place them in a small bowl or on a plate inside the microwave. Close the door and leave them overnight. The coffee grounds will absorb lingering smells, leaving a subtle, pleasant coffee aroma behind. This is a great alternative if you don't have lemon or vinegar readily available, and it can help combat a variety of food smells.
Always ensure any bowl or container used for steaming is microwave-safe and handle it with care due to the hot steam and water.
Activated Charcoal: The High-Performance Absorber
For very strong or persistent odours, activated charcoal is an excellent option. You can purchase activated charcoal sachets or place loose activated charcoal in a breathable bag or container inside the microwave. Like baking soda, it works by absorbing odour molecules. Its porous structure gives it a large surface area, making it highly effective at trapping smells without adding any scent of its own.
The most effective way to eliminate microwave smells is to tackle them promptly and use natural, absorbent agents to neutralise residual odours.
When dealing with difficult smells, such as those from burnt food or strong spices, a combination of methods might be necessary. For instance, steam cleaning with lemon water can remove loose residue, followed by leaving a bowl of baking soda or coffee grounds inside overnight to absorb any remaining odours.
Targeting Specific Microwave Smells
Different types of odours may require slightly tailored approaches to ensure complete removal. Understanding the nature of the smell can help you select the most potent method.
Burnt Food or Plastic Smells
A burnt smell, whether from food or packaging left inside too long, is one of the most challenging to eliminate. Start with the steam method using vinegar, as its acidity is strong. If the smell persists, try a baking soda paste applied directly to any visible scorch marks. For deep-set burnt smells, you might need to repeat the steaming process, perhaps with a stronger vinegar-to-water ratio, or leave a generous amount of baking soda or activated charcoal inside for an extended period, potentially 24-48 hours.
Fish or Strong Spice Odours
These aromatic compounds can permeate the plastic and metal components of your microwave. The lemon steam method is often very effective here, as the citrus oil can help cut through and mask stronger food smells. Alternatively, a bowl of coffee grounds left overnight can absorb these potent aromas. If the smell is particularly stubborn, consider a combination: steam with lemon, wipe clean, then leave coffee grounds or baking soda in overnight.
Musty or Mildew Smells
A musty smell usually indicates trapped moisture and potential mould growth. Thoroughly clean the entire interior with a damp cloth and a mild detergent or a diluted vinegar solution. Pay attention to corners and the door seal. After cleaning, leave the microwave door ajar when not in use to allow air circulation and prevent moisture build-up. Placing an open box of baking soda inside can help absorb any residual mustiness.
For any of these specific smells, it's crucial to clean the turntable and the roller ring underneath it, as food particles and moisture can accumulate there, contributing to odours. Ensure all removable parts are washed separately.
Wipe down the door seal and the interior edges of the door thoroughly, as these areas can trap food debris and moisture, leading to smells.
It's worth noting that while these methods are effective for common issues, extremely severe cases of burnt plastic or chemical smells might indicate damage to the microwave's components. If a strong, acrid smell persists after multiple cleaning attempts, it may be prudent to consider professional inspection or replacement.
Maintenance for a Fresh Microwave
Preventing strong odours from becoming a problem is far simpler than removing them once they're ingrained. Regular, simple maintenance can keep your microwave oven smelling fresh with minimal effort.
Immediate Wipe-Downs
The moment a spill or splatter occurs, take a moment to wipe it clean with a damp cloth. This prevents food particles from drying on and becoming a source of future smells. This habit is more effective than deep cleaning after odours have already set in.
Regular Steam Cleaning
Incorporate a quick steam clean using water and a slice of lemon or a tablespoon of vinegar into your routine every week or two. This keeps the interior surfaces clean and helps prevent any subtle odours from developing into a noticeable problem. It takes only a few minutes and can be done while you prepare other food.
Turntable Care
Remove and wash the turntable and its roller ring regularly, at least once a week, or more often if you cook frequently. These parts can accumulate grease and food debris that harbour smells. They are usually dishwasher-safe, or can be easily washed in the sink.
An open box of baking soda kept inside the microwave when it's not in use can also act as a constant, passive deodoriser, absorbing any faint smells that might arise between cleans. Replace the baking soda every 1-3 months, or when you notice it is no longer absorbing odours effectively.
By implementing these maintenance tips, you can significantly reduce the likelihood of needing intensive odour removal methods, ensuring your microwave remains a pleasant appliance to use.
Invest in Microwave Covers
Using a microwave-safe cover over food while heating is one of the most straightforward ways to prevent splatters and, consequently, the smells they cause. These covers not only keep the microwave interior clean but also help food heat more evenly.
When Natural Methods Aren't Enough
If you've tried the natural methods and a stubborn smell persists, it's time to consider other options. While commercial microwave cleaners exist, they can sometimes be harsh. It's often beneficial to explore alternatives that are still effective but less aggressive.
Commercial Deodorisers
There are specialised microwave deodoriser products available. These often come in gel or sachet form and are designed to absorb or neutralise odours over time. Follow the product instructions carefully for best results. Some may require placement inside the microwave for a set period, while others are designed for continuous use.
Ventilation Check
Ensure your microwave's ventilation system is not blocked. While less common for odour issues, a blocked vent could potentially trap internal odours or affect performance. Check your user manual for information specific to your model regarding vent locations and cleaning.
If the smell is extremely potent, like strong chemical fumes or a deeply ingrained burnt odour that hasn't dissipated after thorough cleaning and deodorising attempts, it might indicate internal damage. In such cases, consult your appliance manual for troubleshooting steps or contact the manufacturer's customer support. For persistent issues that cannot be resolved, replacement of the appliance may be the safest and most effective solution.
For specific advice on your model, always refer to the manufacturer's instructions. They may offer model-specific cleaning recommendations or highlight areas prone to odour build-up. If a strong, unusual smell persists, it's prudent to cease using the appliance until its safety can be confirmed.