You smash a huge holiday meal, everything’s delicious, vibes are great… then your air conditioner smells like garlic and gravy! Here’s why it happens and what you can do to keep your space smelling clean again. Explore with DEEPCHILL, your trusted air conditioning Gold Coast service!
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2 surprising reasons your air conditioner smells after a big family gathering cook-up
Smells from strong cooking
After a big cook-up like Christmas or New Year Eve, the smell can linger and get pulled into your air conditioner. Since the AC pulls in the air around it, a unit placed close to the kitchen or in an open area can easily catch those smells.
Ingredients like garlic, onion, fish and oily dishes leave the strongest smells. They can cling to soft surfaces, get trapped inside the AC and settle in the filters. Once that happens, turning on the air conditioner will push the odor into other rooms, making it seem like the smell is coming from the unit itself.
Dirty or poorly maintained air conditioner
A dirty air conditioner is a super common reason air conditioner smells badly. Cooking a lot can make it worse because it adds more moisture and little grease bits into the air. When the filters or coils get dirty, they stay wet and become a place where bacteria and mold can grow.
That’s when you start noticing musty or sour smells, even a “dirty sock” smell. When you turn on the AC, the bad smell spreads through the whole room. The easiest way to stop this is to clean your AC and change the filters often so the air stays fresh.

Simple ways to get rid of air conditioner smells
For the first reason – bad smells from cooking, DEEPCHILL suggests a few simple DIY steps you can try at home to help your space feel fresher and more comfortable again.
- Clean the room first: Wipe down the kitchen, especially spots where food or oil might have slipped into small gaps. When the space is clean, your air conditioner won’t pick up and spread those leftover smells again.
- Use smell-absorbing items: Place baking soda or charcoal in a few corners of the room. Leave them there for a couple of hours so they can soak up the bad smells.
- Freshen your vents with toothpaste: Non-gel toothpaste can help with stubborn smells in vents. Clear any dust blocking the vent, then use a bit of toothpaste to clean the area.
- Try coffee grounds for greasy spots: If cooking spills leave a smell on the floor, sprinkle fresh coffee grounds (not instant coffee) on the spot. They help absorb strong food smells.
- Refresh cabinets with vanilla: If your cabinets smell like food, clean them with a little vanilla extract. Don’t use too much or the scent might become too strong.
- Air out the space: Open windows and turn on fans or an exhaust fan. This helps push the smell outside faster, especially if the odor feels heavy or lingering.
- Add a light scent: A soft candle or a light room spray can help cover up any leftover smell. Just don’t overdo it, or the mix of scents might feel overwhelming.
If you’ve tried all these steps but the bad smell still won’t go away, it’s time to wash your AC filters. Dirty filters can hold onto old cooking smells and push them back into the room, so giving them a good clean will help your air feel fresher and stop the smell from coming back.
DEEPCHILL, your trusted air conditioning Gold Coast team, is here to take real care of your system. We use hydro clean methods and preventative maintenance to not only clear out stubborn air conditioner smells after cooking for family gathering but also keep your unit healthier and running longer. If you want fresher air and a worry-free system during the holiday, contact us now!











