Wipe the window. Then notice the black specks creeping along the edge of the fridge seal. That is mould. And it started as plain condensation.
In a Kiwi winter the kitchen is the wettest room you have. Boiling pots. A hot dishwasher. A fridge fighting the cold air. Steam with nowhere to go.
Here is the good news. You can stop most of it with airflow and a couple of cheap parts. Worn seals are a common cause so it is worth browsing our fridge door parts if yours look tired. Let us walk through where it comes from and how to shut it down.
Where Kitchen Condensation Actually Comes From
Condensation is simple. Warm wet air touches a cold surface and the water drops out of the air. In winter your kitchen is full of warm wet air and cold surfaces. So it lands everywhere.
The usual sources:
Cooking steam from pots and the kettle. Hot steam venting from the dishwasher. Warm air hitting cold windows and cold walls. A fridge or freezer with a tired door seal letting cold and warm air mix.
Leave that water sitting and mould moves in. Mould is not just ugly. It is linked to breathing problems. Stats NZ data shows more than one in five New Zealand homes are damp at least some of the time so this is a common Kiwi issue. You can see the damp and mouldy homes figures on EHINZ.
The Fridge Is a Common Culprit
Your fridge runs cold inside and sits in a warm kitchen. When the door seal goes hard or cracked the cold air leaks out and meets the warm room air. The result is sweating around the door and damp patches down the side.
Run the paper test. Shut a piece of paper in the door. If it slides out easily the seal is not gripping. Time for a new one. Browse fridge door parts and seals by your model.
Pull the fridge out a little from the wall too. It needs air space at the back to shed heat. Jammed against the wall it sweats and the wall behind grows mould.
The Dishwasher Dumps Steam Into the Room
Open a dishwasher right after a cycle and a wall of steam rolls out. In winter that steam hits cold cupboards and benchtops and turns to water.
Two easy fixes. Wait twenty minutes before opening so the load cools first. And check the door seal. A perished dishwasher seal lets steam escape mid cycle and leak onto the floor and cabinetry. We stock dishwasher seals for the main brands.
The Oven and Rangehood
Cooking is the biggest moisture maker in the kitchen. Boiling a big pot of pasta puts litres of water into the air.
Run the rangehood or extractor every time you cook. Not just when it smokes. It pulls the moist air out before it can settle. New Zealand even writes this into the rules. The healthy homes ventilation standard requires rental kitchens to have an extractor that vents to the outside for exactly this reason.
While you are at it check the oven door seal. A blown oven seal lets hot moist air escape into the room on every bake. Browse oven door seals if yours is flattened or torn.
Simple Daily Habits That Keep It Dry
You do not need a builder. You need airflow.
Run the rangehood while you cook and for a few minutes after. Put lids on pots to trap the steam. Open a window for ten minutes after cooking. Wipe condensation off windows and seals before it sits. Pull the fridge out a little so air moves behind it. Run a dehumidifier in the worst weeks of winter.
When a Part Is the Real Problem
Sometimes habits are not enough because a part has failed.
A fridge or freezer door seal that no longer grips. A dishwasher seal that leaks steam. An oven seal that is flattened. Each one turns a dry kitchen into a damp one.
We stock genuine and quality tested seals and parts for the main brands in New Zealand. Browse fridge parts or dishwasher seals or oven door seals by your model number.
Keep Your Kitchen Dry This Winter
Condensation is just warm wet air meeting cold surfaces. Take the moisture out and the mould has nothing to grow on. Run the extractor. Lid your pots. Crack a window. Replace the seals that have given up.
Find the cause. Fix the part. Keep your kitchen dry and mould free all winter.
Ready? Browse fridge door seals and parts or email steve@appliancespares.nz with your model number.
Frequently Asked Questions
How do I stop mould growing behind my fridge?
Pull the fridge out a few centimetres so air can move behind it and shed heat. Wipe the wall and the back of the fridge dry. Check the door seal grips because a leaking seal feeds cold damp air into that gap. Keep the area ventilated and the mould stops coming back.
Is the black mould around my kitchen seals dangerous?
Treat it seriously. Black mould releases spores that are linked to coughing wheezing and asthma especially in kids. Wipe it off with warm water and white vinegar then fix the moisture source so it does not return.
Does opening a window in winter actually reduce condensation?
Yes. A short burst of fresh air clears the humid inside air and lets drier air in. Ten minutes after cooking makes a real difference. Pair it with a bit of heating because warm dry air holds moisture better than cold air.
Why does only my kitchen get condensation and not the rest of the house?
The kitchen makes the most moisture in the house from cooking and the dishwasher and the kettle. If the airflow is poor that water lands on the nearest cold surface which is usually the window. More extraction and a quick airing sorts it.
Will a dehumidifier help with kitchen condensation?
Yes in the worst weeks of winter. A dehumidifier pulls water straight out of the air so it cannot settle on cold surfaces. Run it in the kitchen or the connected living space on damp days and empty the tank regularly.