What is IQF frozen fruit, and why does it matter?
If you have ever opened a bag of frozen berries and found one solid brick, you have met fruit that was not frozen the IQF way, or that thawed and refroze on its journey. IQF stands for individually quick frozen. It is the method behind fruit that pours freely, portions easily and keeps its shape.
How IQF works
After washing and sorting, the fruit travels through a tunnel where very cold air (often around -30°C to -40°C) blows from below, so each berry floats and freezes on its own in minutes. Because freezing is fast, the water inside the fruit forms small ice crystals. Slow freezing forms large crystals that pierce the cell walls, which is why slowly frozen fruit turns mushy and leaks juice when it thaws.
What IQF means in your kitchen
- Exact portions. Take 150 g for a smoothie without thawing the whole bag.
- Less waste. The rest of the bag goes straight back to the freezer.
- Better presentation. Whole raspberries and blueberries keep their shape on cheesecakes and bowls.
- Consistent colour and taste across the year, because the fruit was frozen at peak ripeness.
Nutrition: frozen is not second best
Quick freezing locks in most vitamins and the antioxidant pigments that give berries their colour. Studies compiled by nutrition researchers, such as the Harvard T.H. Chan School of Public Health's guide to berries, treat frozen berries as a healthy everyday choice. We compare the two in detail in frozen vs fresh berries.
How to recognise real IQF fruit
- Shake the bag: the fruit should rattle and move.
- Look at the shape: berries should be whole, not flattened or broken.
- Check for snow: a little frost is normal, heavy ice suggests temperature abuse.
- Ask your supplier how they transport: a broken cold chain undoes good freezing.
Keeping the IQF benefit
IQF quality only lasts as long as the fruit stays frozen. Store at -18°C or colder and avoid opening the freezer for long periods. Our cold-chain guide covers the details.
All our raspberries, blueberries and blackberries come in 10 kg cartons, ready for professional kitchens.
