
There are many reasons why your bedroom might smell like rotten cheese. It could be due to something innocuous, such as a potato that has gone off and liquified, or a piece of bread that has gone bad. It could also be due to something more serious, such as a gas leak, a broken pipe, or mold. Other possible causes include a dirty fridge, a dead animal, or bacteria in your kitchen sink or drain. If you can't identify the source of the smell, it's important to take steps to find it and address the issue, as it could be a sign of a larger problem.
| Characteristics | Values |
|---|---|
| Rotten egg smell | Could be a gas leak, which could cause a fire or explosion |
| Musty, pungent odour | A sink leak or broken pipe that has given rise to mould |
| Strong smoke smell | Could be electrical smoke behind a wall or in a ceiling light fixture |
| Fishy odour | An electrical fixture, likely an appliance, in your home is overheating |
| Smell of vomit, stinky cheese, and bad breath | A dead mouse or rat in the house |
| Smell of cheese | A neighbour growing cannabis |
| Smell of cheese | A chunk of cheese under the oven or fridge |
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Rotten food
If your bedroom smells like rotten cheese, there could be a number of causes. Firstly, it's important to consider any potential health and safety risks. If the smell resembles rotten eggs, it could indicate a gas leak, which can be extremely dangerous and should be addressed immediately. Leave the house and contact the gas company or emergency services.
Once you've ruled out any immediate dangers, there are several possible causes for the cheese-like odour. One common issue is spoiled food items, such as potatoes, bread, or milk, which can emit a strong, pungent odour. Check your kitchen, including behind appliances and inside your fridge, for any forgotten food items that may have gone bad.
Another potential cause could be mould or bacteria growth. Mould thrives in damp, dark environments and can produce a musty, pungent odour. Check for any signs of water leaks or broken pipes, especially in areas like under the sink or behind appliances. If you spot mould, disinfect non-porous surfaces and ventilate the area. Porous surfaces may need to be replaced.
Additionally, odour-causing bacteria can build up in your kitchen sink, drain, and garbage disposal. Regular cleaning with a mixture of ice cubes, baking soda, lemon slices, and bleach can help eliminate bacteria and improve odours.
Other potential causes to consider include dirty laundry, especially if it's been exposed to humidity, or pet-related odours from their sleeping and eating areas.
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Dead animals
A bedroom that smells like rotten cheese could indicate the presence of dead animals in the house. Dead animals emit a pungent odour that may resemble the stench of rotten cheese. This is particularly true for small animals that may have entered your home, such as mice or rats, which can die in hidden places, making them difficult to find.
If you suspect a dead animal is the source of the odour, a thorough investigation is necessary. Start by checking common hiding places, such as behind appliances like the fridge, the AC vents, or under furniture. Don't forget to look in less accessible areas, such as attics, inside walls, or under the floor, as animals can sometimes gain access to these spaces.
The smell of rotten cheese could also be a sign of mould or bacteria growth in your home. Mould often grows in damp and dark areas, such as under sinks, in basements, or inside walls. It can cause a musty, pungent odour that may be reminiscent of rotten cheese. To prevent mould growth, it is important to maintain a dry environment, especially in areas prone to moisture, such as bathrooms and kitchens. Regular cleaning with bleach and water solutions can also help inhibit mould growth and eliminate odours.
Additionally, bacteria can thrive in various areas of your home, including the kitchen sink, drain, and garbage disposal. Food particles and spills can contribute to bacterial growth, leading to unpleasant odours. To address this, regular cleaning with disinfectant solutions or natural remedies like baking soda, lemon slices, and bleach can be effective.
It is important to note that if the smell persists or becomes unbearable, seeking professional assistance may be necessary. Specialists in odour removal can help identify the source and implement effective solutions to eliminate the odour of rotten cheese from your bedroom.
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Dirty laundry
A bedroom that smells like rotten cheese could be the result of dirty laundry. This is often caused by bacteria, which can build up in laundry over time, especially in warm and damp environments. If laundry is left in the washer for too long, mildew can grow and cause a sour smell. This can be removed by washing the clothing with a cup of white vinegar or baking soda and adding an extra rinse cycle.
If the dirty laundry is causing an armpit odour, this may be due to sweat, which is caused by an interaction between bacteria and secretions of the apocrine gland. To remove this odour, pre-treat the clothing by creating a paste with baking soda and water. Leave the paste on the fabric for 30 minutes before machine washing.
If the dirty laundry is a towel, it is recommended to wash it at least once a week, or more if the environment is hot and humid. It is also recommended to spread the towel out on a rack to dry instead of hanging it on a hook.
If the dirty laundry is activewear, it is recommended to wash it daily. If this is not possible, soak the clothes in a plastic container with water and baking soda until laundry day.
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Mould and bacteria
Odour-causing bacteria can also be found in your kitchen sink, drain, and garbage disposal scraps. To prevent this, clean your sink and drain regularly, and dispose of garbage scraps. Bacteria can also grow in humid environments, such as in the bathroom, or in dirty laundry. To prevent this, clean bathrooms and laundry areas regularly, and do laundry as soon as possible.
Other potential causes of a rotten smell could be a gas leak, a dead animal, or the presence of cannabis.
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Faulty appliances
A rotten egg smell in your bedroom could indicate a faulty appliance. If you have any gas or propane appliances, the smell could be a gas leak, which is extremely serious. Take a few seconds to leave your home and call your utility company or the fire department. Gas is odorless, but gas companies add a chemical called mercaptan, which produces a sulfur smell when there's a leak.
If you are certain that the smell is not a gas leak, you can then investigate other possible causes. Broken drain pipes can cause sewer gases to seep into your home. If the smell is stronger outside than inside, this is likely the issue, and you should call a plumber immediately.
If you have a hot water heater, this could be the problem, especially if you only smell the odor when you run hot water. A plumber can replace parts and turn up the temperature to kill bacteria.
If the smell is coming from your fridge, it could be due to spoiled food. Throw out any gross food and take out the trash, then treat the affected area with a multi-purpose cleaner. You can also use an air freshener with a light odor. If your fridge has a drip tray, milk may have leaked into it, causing a hideous smell. Clean the drip tray and the fridge thoroughly, and pour a mixture of bicarbonate of soda and water down the drainage bit inside the fridge.
If you are still unable to locate the source of the smell, get a friend to help. It could be something innocent, like a dead mouse, or something less harmless, like a rat problem.
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Frequently asked questions
There could be several reasons for this. A likely cause is bacteria build-up in your kitchen sink, drain, or dishwasher. It could also be that your washing machine or dishwasher is a hotspot for mould, which loves to grow in damp spots. If you have pets, it could be time to bathe them and clean the spots where they sleep and eat.
If you can't localise the smell, get a friend to help. If you still can't find the source, it could be that the smell is coming from a vent pipe, which routes sewer gas up and out through your roof, or from a broken pipe.
A strong smoke smell could indicate an electrical fire, so don't ignore it. If your house smells like rotten eggs, it could be a gas leak, which could cause a fire or explosion. Leave the house immediately and call the gas company.

























