Why Some Fridges Smell No Matter How Often You Clean Them—And How to Fix It

Woman opening fridge in modern kitchen with brick wall and stainless steel countertops.

A fresh-smelling fridge should be the standard, but many people struggle with persistent odours that won’t go away no matter how often they clean. Even after scrubbing shelves and tossing out expired food, an unpleasant smell can linger. If you’ve tried everything and your fridge still smells, the issue may not be what you think. Factors like hidden spills, clogged vents, and even the type of food storage can all contribute to stubborn odours. Whether you have an older model or are considering upgrading and comparing Smeg fridge price, understanding the root cause of fridge odours and how to fix them can save you frustration and keep your kitchen smelling fresh.

Common Causes of Persistent Fridge Odours

1. Hidden Food Residue

Even the most thorough cleaning can miss tiny spills or leaks that accumulate over time. Liquids from meat, dairy, or produce can drip into crevices and under shelves, where they begin to rot unnoticed.

How to fix it:

  • Remove all shelves and drawers, and wash them with warm soapy water.
  • Check the back wall, under the crisper drawers, and in door seals for any residue.
  • Use a toothbrush or cotton swab to reach into tight corners.

2. Clogged or Dirty Drain Hole

Most fridges have a small drain hole at the back that helps remove excess moisture. If this drain becomes clogged with food particles or mould, it can lead to stagnant water and bad smells.

How to fix it:

  • Locate the drain hole (usually at the back of the fridge, near the bottom).
  • Use a mixture of warm water and baking soda to flush out any blockages.
  • Insert a small pipe cleaner or flexible brush to dislodge any trapped debris.

3. Odour-Absorbing Packaging

Certain plastic containers, cardboard boxes, and food packaging can absorb strong odours, even after the food inside is gone. Over time, these materials can release smells into the fridge.

How to fix it:

  • Store food in airtight glass or BPA-free plastic containers.
  • Regularly check and replace any packaging that smells bad.
  • Avoid keeping old takeout containers that may retain food odours.

4. Mould or Bacteria in Seals and Vents

The rubber door seals and air vents are common hiding places for bacteria and mould growth. Because they trap moisture, they can develop an unpleasant, musty smell.

How to fix it:

  • Wipe down the seals with a mix of white vinegar and water.
  • Use a cotton bud to clean between the folds of the rubber seal.
  • Check and clean air vents to prevent airflow from circulating bad odours.

5. Strong-Smelling Foods Without Proper Storage

Certain foods, such as onions, garlic, cheese, and seafood, can leave lasting odours in the fridge if not properly sealed. These smells can be absorbed by other foods, making the problem worse.

How to fix it:

  • Store strong-smelling foods in airtight containers.
  • Use glass jars with tight lids for maximum odour control.
  • Avoid placing uncovered leftovers directly in the fridge.

Natural Ways to Keep Your Fridge Smelling Fresh

Even after deep cleaning, odours can return if the fridge isn’t maintained regularly. Using natural deodorisers can help absorb bad smells and keep your fridge fresh.

1. Baking Soda

Baking soda is one of the best natural odour absorbers.

  • Place an open box of baking soda on a shelf.
  • Replace it every 1–2 months for ongoing freshness.

2. Activated Charcoal

Charcoal naturally absorbs moisture and odours.

  • Place a small bowl of activated charcoal in the fridge.
  • Change it out every few weeks for best results.

3. Coffee Grounds

Used coffee grounds can neutralise bad smells.

  • Spread dried coffee grounds on a plate and leave them inside the fridge.
  • Replace weekly for a fresh scent.

4. Lemon Slices

Lemons provide a fresh, clean smell.

  • Cut a lemon in half and place it in a dish inside the fridge.
  • Replace every few days to prevent mould.

Keep Your Fridge Smelling Fresh Long-Term

Child in a bright kitchen reaching into a refrigerator, wearing a yellow sweater and jeans.

To prevent future odours, establish a simple routine:

  • Wipe up spills immediately.
  • Regularly check for expired food.
  • Deep clean your fridge every few months.
  • Keep odour absorbers inside for continuous freshness.

A little maintenance goes a long way in keeping your fridge fresh, clean, and free of lingering smells.

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