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Air Fryer Smells Like Fish? Get Rid of It Tonight and Keep It Away

Fish oil bakes onto the basket and the parts above it. Wash it out tonight, run a lemon steam, and keep a degreaser on hand so the smell never settles in.

By Jamilur Rahman Updated November 5, 2026 · 6 min read

Time
30 min
Cost
Under $20
Difficulty
Easy
An open air fryer basket with a greasy film inside and a few lemon slices on the counter beside it
In this guide
  1. Quick answer
  2. Free vs. permanent fix
  3. What you'll need
  4. Why it happens
  5. Try this first (free)
  6. When free fixes aren't enough
  7. Buy the fix
  8. How to cook fish without the smell sticking
  9. Fishy smell from a clean, empty air fryer? Stop and check
  10. What to skip
  11. FAQ
  12. Related problems

Quick answer

When your air fryer smells like fish, baked-on fish oil is sitting on the basket, the heating element and the fan cover, and the heat wakes it up every time you cook. Wash everything in hot soapy water, wipe the element once it is cool, then run a lemon steam. Soap and a lemon fix it for most people. A degreaser spray cuts the film faster, and a liner stops it forming.

Free fix vs. permanent fix

Free fix · 30 minutes

Hot soapy wash plus a lemon steam

  • Soak the basket and tray in hot soapy water for 15 minutes
  • Wipe the cool, unplugged heating element and the ceiling of the unit
  • Run lemon slices at 350°F for 5 minutes
  • Leave the drawer open overnight so it airs out

How long it lasts: Clears most fish smell for good if you reach the element and fan cover. It returns if oil builds up again after every fish night.

Most readers choose Permanent fix
Air fryer basket degreaser spray (illustration)
Illustration

A food-safe degreaser spray for the basket

Fish oil leaves a thin, sticky film that soap can miss in the corners. A degreaser made for cookware breaks it down in a minute or two, so you rinse it away instead of scrubbing. The wash fixes tonight's smell, and the spray makes the next cleanup quick enough that you actually do it.

What to get: Air fryer basket degreaser spray

How long it lasts: Works every time you use it after fish, bacon or wings, so the film never builds up.

Check price on Amazon

As an Amazon Associate I earn from qualifying purchases.

What you'll need

  • Dish soap and a non-scratch sponge

    Skip steel wool, which strips the nonstick coating

    You have it

  • Lemon or white vinegar

    For the steam that lifts the last of the smell

    You have it

  • Soft cloth or old toothbrush

    For the heating element and fan cover

    You have it
  • Our pick
    Air fryer basket degreaser spray (illustration)
    Illustration

    Air fryer basket degreaser spray

    Cuts the sticky fish film faster than soap

    Check price
  • Perforated parchment liners (illustration)
    Illustration

    Perforated parchment liners

    Catch fish drips so the basket stays cleaner

    Check price

Why it happens

1

Fish oil baked onto the basket

Fish is oily. At 350 to 400°F the oil splatters onto the basket and tray and bakes into a thin sticky film. That film smells strongest when it heats up again.

2

Grease hiding above the basket

Hot air blows oily mist up onto the heating element, the fan cover and the inside of the unit. Most people never wash there, so those spots keep smelling.

3

Old grease going rancid

Leftover oil turns stale within a few days. A grease smell that is worse on the next cook, or just weird and bad, is often this.

4

Odor in the coating and seals

Nonstick coating and rubber seals can hold smell, especially when the basket was put away damp.

Try this first (free)

Do these in order, starting with the simplest.

  1. Unplug it and let it cool

    Wait until it is cool to the touch. Take out the basket and tray, and work over a towel so grease stays off the counter.

  2. Soak and wash the basket and tray

    Tool used: Dish soap and a non-scratch sponge

    Fill the sink with hot water and a good squirt of dish soap. Soak for 15 minutes, wash with a non-scratch sponge, then rinse and dry completely.

  3. Wipe the element and the inside

    Tool used: Soft cloth or old toothbrush

    Turn the unit upside down over a towel. Wipe the heating element, fan cover and walls with a well-wrung damp cloth, or a toothbrush dipped in soapy water. Keep water out of the vents.

  4. Spray any sticky spots with a degreaser

    Tool used: Air fryer basket degreaser spray

    On a basket that still feels tacky, spray a food-safe degreaser made for cookware, wait the time on the label, then wash and rinse well. Never spray it on the heating element.

    Air fryer basket degreaser spray (illustration)
    Illustration

    Tool for this step

    Air fryer basket degreaser spray · Cuts the sticky fish film faster than soap

    Check price on Amazon

  5. Run a lemon steam

    Tool used: Lemon or white vinegar

    Put three or four lemon slices and a splash of water in the basket. Run at 350°F for 5 minutes, let it cool, wipe the basket and leave it open to dry. A tablespoon of white vinegar works if you have no lemon.

  6. Line the basket next time

    Tool used: Perforated parchment liners

    Cook fish on perforated parchment liners that catch drips, and wipe the basket while it is still warm.

    Perforated parchment liners (illustration)
    Illustration

    Tool for this step

    Perforated parchment liners · Catch fish drips so the basket stays cleaner

    Check price on Amazon

When free fixes aren't enough

If the smell survives a full wash and a lemon steam, oil is probably caked on the heating element or fan housing where a cloth cannot reach. A degreaser on the basket and tray, plus a second lemon steam, handles most of what is left. If it still smells fishy when empty and clean, or the smell is hot plastic or electrical, unplug it and stop using it. A fishy or chemical odor can also be an electrical fault.

Buy the fix

Still stuck after the free fixes? These are the products we would look at.

Best pick
Air fryer basket degreaser spray (illustration)
Illustration

Air fryer basket degreaser spray

Fixes: the sticky fish-oil film that plain soap leaves behind

Look for: Labeled food-safe, or safe for cookware and nonstick surfaces; Rinses off with water and has no heavy perfume; A spray bottle that reaches the sides and corners of the basket.

Who it's for
Anyone who often cooks fish, wings or bacon in the air fryer.
Honest downside
You cook fish only now and then. Dish soap and a lemon steam do the same job. Also skip it if the coating is already peeling; replace the basket.
Check price on Amazon

As an Amazon Associate I earn from qualifying purchases. We don't show prices because they change, so use the button to see today's price.

How we picked: How we picked: this page is based on air fryer care guides from makers, food-safe cleaning advice, and the odor problems owners report in reviews. We do not test products by hand.

How to cook fish without the smell sticking

  • Pat fillets dry and brush on a little oil instead of using a lot.
  • Cook on a perforated liner and weigh it down with the food, because a loose liner can lift into the heating element.
  • Wipe the basket and tray within 10 minutes of cooking, while they are warm.
  • Run the empty basket with lemon slices for 2 minutes after fish night.

Fishy smell from a clean, empty air fryer? Stop and check

Cooked fish smells like grease. A fishy or chemical smell from an empty unit, the plug or the outlet is different and can be overheating plastic or wiring. Unplug it, stop using it and check the cord and plug for scorch marks or melted plastic. If you find any, replace the unit and have the outlet checked.

What to skip

Air fresheners and harsh scrubbing

Sprays only put perfume over the smell, and fragrance sprayed inside the unit can bake into your next meal. Skip steel wool and strong oven cleaner too. Both strip the nonstick coating and make the next cleanup harder.

Frequently asked questions

Why does my air fryer smell like grease?
Oil mist coats the basket, the heating element and the fan cover. Old oil goes stale in a few days, then smells again every time it heats up. Wash all three areas, not only the basket.
Why does my air fryer smell bad even after I wash the basket?
The smell is probably on the parts you did not wash. The heating element, the fan cover and the ceiling of the unit collect most of the oil. Wipe them when cool, then run the lemon steam.
Why does my air fryer smell weird when it is new?
A new unit often gives off a plastic or oily smell for the first few uses as the factory coating burns off. Wash the basket, then run it empty at 400°F for 10 to 15 minutes in a ventilated room, as many manuals suggest. If the smell lasts longer than that, contact the maker.
Can I use vinegar inside an air fryer?
A splash of white vinegar with water in the basket for a steam run is fine. Do not pour it on the heating element, and wash and dry the basket afterward.

As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure

Air fryer basket degreaser spray (illustration)
Illustration

Our pick: Air fryer basket degreaser spray

Check price