Chest freezers don't have automatic defrost, which means ice builds up over time. Defrosting your chest freezer annually (or when ice exceeds 5mm) keeps it running efficiently and maximises storage space. Here's how to do it safely and efficiently.
What You'll Need
- Large towels or old newspapers
- A plastic scraper or spatula (never metal — it can damage the liner)
- A large bucket or containers for meltwater
- An old blanket or cooler bags to keep food frozen
- Warm water and a cloth (optional, to speed the process)
Step-by-Step: How to Defrost a Chest Freezer
Step 1: Plan Ahead
Defrosting takes 2–6 hours. Choose a cool day if possible to minimise food temperature rise. Have cooler bags or a friend's freezer ready to store your food temporarily.
Step 2: Empty the Freezer
Remove all frozen food and pack it into cooler bags with ice bricks. Work quickly to keep food below -15°C if possible.
Step 3: Turn Off and Unplug
Switch off and unplug the freezer completely. Never defrost with the power on.
Step 4: Place Towels Around the Base
Lay old towels around and inside the base of the freezer to absorb meltwater. Place more inside the freezer to catch drips.
Step 5: Let Ice Melt Naturally
Leave the lid open and let the ice melt naturally. This is the safest method. For thick ice, place bowls of warm (not boiling) water inside to speed up melting.
Step 6: Remove Loose Ice
As ice loosens, gently remove large chunks with a plastic scraper. Never chip at ice with metal tools — you can easily puncture the liner or cooling coils.
Step 7: Wipe Down and Dry
Once all ice has melted, wipe down the interior thoroughly with a clean cloth and mild detergent. Dry completely before plugging back in.
Step 8: Restock and Cool Down
Plug back in, let the freezer reach operating temperature (usually 1–2 hours), then restock your food.
How Often Should You Defrost?
Defrost when ice buildup exceeds 5mm — typically once or twice a year for most households.
Shop Chest Freezers at Oceania Appliances
Browse our chest freezer range at oceaniaappliances.com.au/collections/chest-freezers. Free Sydney delivery.