Why is fridge defrosting recommended?

Fridge defrosting is the safest method because the food stays at a safe temperature (below 5°C) throughout. This prevents bacteria from multiplying. It is also the most hands-off method — put it in the fridge and forget about it.

Can I cook meat from frozen?

Some meats can be cooked from frozen, but they take about 50% longer to cook and the results may be uneven. It is safest and gives the best results to defrost fully first. Never cook a whole frozen chicken or turkey from frozen.

Is it safe to defrost at room temperature?

No. The NHS advises against defrosting food at room temperature because the outside thaws first and can reach the 'danger zone' (8-63°C) while the inside is still frozen, allowing bacteria to multiply. Always use the fridge, cold water, or microwave.

Can I refreeze thawed food?

Food that has been thawed in the fridge can be refrozen within 1-2 days, though texture may suffer. Food thawed by microwave or cold water should be cooked immediately and can then be frozen once cooked and cooled.

How do I defrost using cold water?

Place the food in a leak-proof bag and submerge in cold tap water. Change the water every 30 minutes to keep it cold. This is faster than the fridge but requires attention. Cook the food immediately after thawing.

BakeCalcs

Defrost Time Calculator

Calculate approximate fridge defrost time for meat, poultry, and baked goods by weight.

Weight of Frozen Food

Food Type

Defrosting Method

How We Calculate This

This calculator estimates defrost times based on food weight and defrosting method. Times are approximate — the actual time depends on the shape and thickness of the food, your fridge temperature, and how well it was wrapped.

Approximate Fridge Defrost Rates

Most meat and fish: ~5 hours per 500g
Whole turkey: ~24 hours per 2.5kg
Bread and baked goods: ~3 hours per 500g
Soups and stews: ~4 hours per 500g

Food Safety

Always defrost in the fridge, cold water, or microwave — never at room temperature
Place defrosting meat on a plate or tray to catch drips
Cook immediately after microwave or cold water thawing

Frequently Asked Questions

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Last updated: February 2026

All calculations are based on standard ratios and conversions. Results may vary with specific ingredients, equipment, and conditions.