How to Remove the Smell of Fermented Shark from Your Home
Fermented shark, or hákarl, can flood a whole room with a heavy ammonia smell the second you open the bag. It clings to fabric. It sticks to your fingers. And if you opened it indoors, the odor did not stay in the kitchen.
You already tried the obvious move. You washed the container, wiped the counter, and it still smells. That is because the source of this smell is not surface grease you can scrub off, so a clean candle that burns without paraffin soot or heavy toxic fragrance can help keep the room fresh once you deal with the real cause, and MBur's pure beeswax candles are a good pick for that job.
Throwing out the shark is the easy part. It is not the part that fails.
Why fermented shark smells the way it does
Greenland shark meat is packed with urea and trimethylamine oxide. Raw, it is toxic to eat. The traditional cure fixes that.
Icelanders bury the shark in gravel pits for about 6 to 12 weeks. Then it hangs and dries for another 2 to 4 months. During all that time, bacteria break the urea down into ammonia.
That ammonia is the smell. People compare it to heavy window cleaner or stale urine. It is chemical, sharp, and it travels.
This matters for cleanup. Ammonia is a gas, not a stain. You are not fighting something greasy on a surface. You are fighting a vapor that has already spread into the air and soaked into soft things nearby.
The mistake that makes it worse
Most people reach for a plastic container and think the problem is sealed away. Ammonia molecules are small. They pass right through thin plastic.
So the bag you double-knotted is still leaking. This is why the smell keeps coming back after you clean. The source is still in your fridge, quietly gassing off.
Heating it indoors is the other big error. Warming ammoniated fish releases the gas fast and hard. If you cooked it inside, the odor got exponentially stronger in minutes.
Traditional Icelandic prep happens outdoors in deep pits, far from where anyone lives. That is not a coincidence. The whole handling method exists to keep the vapor away from indoor air.

Step one, remove and contain the source
Nothing you do to the air works while the shark is still gassing off. Deal with the source first.
Move any leftover hákarl into an airtight glass container with a tight gasket lid. Glass holds ammonia where thin plastic fails. If you are storing it, keep it cold and sealed.
If you are tossing it, double-bag it in thick plastic and take it straight to an outdoor bin. Do not leave it in the kitchen trash overnight.
Wash every surface and container it touched. Warm water and dish soap, done twice. Your hands too, since the smell loves skin.
Step two, neutralize the ammonia in the air
Now the vapor. Open windows and get cross-airflow moving. A fan pushing air out one window pulls fresh air in another.
Set out open bowls of white vinegar around the room. Vinegar is acidic and it grabs onto ammonia, which is a base. Leave the bowls for several hours.
Baking soda works too. Put it in shallow dishes near the fridge and on counters. It pulls odor out of the air slowly but steadily.
Wipe down hard surfaces with a vinegar and water mix. Get the cabinet fronts, the fridge door, and anything the fumes drifted past.
Step three, hit the soft stuff
Ammonia soaks into fabric. Curtains, dish towels, and any laundry nearby held onto it. Wash what you can on a normal cycle.
For upholstery and rugs, sprinkle baking soda on, let it sit for a few hours, then vacuum it up. Repeat if the smell hangs on.
One reader of this brand put it plainly about air quality after switching candles.
"I absolutely love these candles! I instantly notice the difference in the air quality, in comparison to the Bath & Body scented candles." Jason H.
Once the source is gone and the air is clear, you want to keep the room smelling clean without piling a heavy chemical scent on top. A candle with a clean burn does that job well. MBur's Slice of Life candle leans crisp and green, with notes of Spearmint, Eucalyptus, Tomato Leaf, Anise, and Mint, which reads fresh in a kitchen that just went through this.
Why a clean-burning candle matters here
After a fight with an ammonia smell, the last thing you want is a candle that masks it with a heavy toxic fragrance. That just layers a second strong smell over the first.
Paraffin candles release soot as they burn. That soot can settle back onto the surfaces you just cleaned. Beeswax burns clean, with no paraffin and no phthalate-laden fragrance.
MBur candles use 100% beeswax, a wooden wick, and phthalate-free fragrance. No chemical dyes. They are handmade in New York City and burn up to 80 hours.
The point is to keep the room fresh, not to trade one aggressive smell for another. A fresh, honest candle keeps a clean kitchen smelling clean.
What to do if it still lingers
Ammonia can hide in places you forgot. Check the inside of the fridge, the trash can itself, and the drain where you rinsed things.
Wipe the fridge interior with the vinegar mix and leave an open box of baking soda inside. Run hot water and a little baking soda down the drain.
Give it a full day with windows open when weather allows. Air exchange does more heavy lifting than any single trick.
If your kitchen storage habits are part of the problem, the government keeps a clear reference on cold food storage that is worth a look at the FoodSafety.gov cold storage charts.
Frequently asked questions
What causes the intense smell of fermented shark?
The odor comes from high levels of ammonia and trimethylamine oxide. These form as urea in Greenland shark meat breaks down during the long cure. Once the source is sealed and gone, keep the air fresh with a clean-burning option from the beeswax candle collection.
How can I get the smell of hákarl out of my kitchen?
Wash every container and surface with soap and warm water, twice. Then set out open bowls of white vinegar or baking soda to pull the ammonia from the air. Follow it with a fresh candle like the Slice of Life candle to keep the room smelling clean.
Does sealing fermented shark in plastic containers stop the odor?
No. Ammonia molecules are small enough to pass through thin plastic. Use an airtight glass container with a gasket lid, or double-bag it, to actually contain the smell.
Why does fermented shark smell like cleaning products?
The cure breaks urea down into ammonia, which is the same base note in many window cleaners. That is why the scent reads chemical instead of fishy.
Will a candle just cover the smell instead of fixing it?
A candle should be the last step, not the first. Remove the source and neutralize the air, then a clean beeswax candle from the candle collection keeps the fresh air fresh instead of masking a problem you left in place.
The takeaway
The ammonia smell of fermented shark lives in the air and in your fabrics, not just on the counter. Seal and remove the source first, neutralize with vinegar and baking soda, then wash the soft stuff. Only then does a clean candle earn its place.
For the final step, the Slice of Life candle is a fresh, minty pick that keeps a just-cleaned kitchen smelling that way. It comes in sizes from the 40-hour at $32 to the 80-hour at $65, with reviewers repeatedly noting how much cleaner the air feels than with mass-market brands.
Ready to keep your space smelling fresh? Shop the Slice of Life candle.
Related reading
- Discover the Secret to Soot-Free Candles: Say Goodbye to Mess and Hello to Clean Burn
- Why Paraffin-Free Candles Are a Must-Have for a Healthier Home
- Discover the Benefits of Non-Toxic Candle Fragrance Oils: Enhancing Your Space without Harmful Chemicals
- What Makes a Candle Non-Toxic? How to Spot the Real Thing

