How to Prevent Mould in Your Fridge and Keep It Fresh

Fridge mould is unpleasant, unhygienic and can contaminate otherwise fresh food. The good news is that with the right habits, fridge mould is entirely preventable. Here's everything you need to know.

Why Does Mould Grow in Fridges?

Mould grows wherever there's moisture, food residue and limited air circulation. In a fridge, common mould hotspots are:

• The door seals (rubber gaskets)
• The vegetable crisper drawers
• Spills and drips that weren't cleaned promptly
• Containers with food residue around the lid
• The back wall (condensation)

Prevention Tips

1. Keep Your Fridge at the Right Temperature

Set your fridge to 3–5°C and your freezer to -18°C. Temperatures above 5°C encourage mould growth. Use a cheap fridge thermometer to verify your actual temperature — the dial setting isn't always accurate.

2. Clean Up Spills Immediately

Any spill or drip creates the perfect environment for mould. Wipe spills with a clean cloth and a mild cleaning solution as soon as they happen. Don't let them sit.

3. Store Food Properly

• Always use sealed containers for leftovers and open food
• Wrap cheese and deli meats tightly
• Don't store uncovered bowls of food in the fridge
• Remove produce from plastic bags (they trap moisture)

4. Clean the Door Seals Regularly

The rubber door gasket is a prime mould location. Run a damp cloth along the folds of the seal once a month. Use a toothbrush for tight crevices. If mould is present, clean with a dilute solution of water and white vinegar.

5. Regular Full Fridge Clean

Once every 1–3 months, do a full fridge clean:

1. Remove all food
2. Wipe all shelves and drawers with a mild cleaning solution (bicarbonate of soda mixed with water is excellent — it neutralises odours)
3. Rinse and dry all surfaces
4. Clean door seals and drawers thoroughly
5. Check the drip tray underneath and drain tube — these can harbour bacteria

6. Keep the Crisper Drawers Dry

Moisture in the crisper drawers encourages mould on vegetables and in the drawer itself. Line the drawers with paper towel to absorb excess moisture. Replace weekly.

7. Don't Overfill

An overfull fridge restricts airflow and creates uneven temperatures. Leave some space between items for air to circulate.

Getting Rid of Existing Mould

If mould is already present:

1. Remove all food
2. Make a cleaning solution: 1 tablespoon bicarbonate of soda in 1 litre of water, or white vinegar diluted 1:1 with water
3. Wipe all affected areas thoroughly
4. Rinse with clean water
5. Dry completely before returning food

Looking for a new fridge? Browse our tested fridge range | Contact us