IQF or block-frozen salmon: which format should you choose?
Behind this technical choice sit your yield, your production flexibility and the consistency of your margins. How to decide, format by format.
IQF frozen salmon and block freezing answer two distinct industrial needs. Choosing one over the other without looking at your downstream process means accepting a yield loss that is invisible on the invoice but very real at the cutting table. Here are the decision criteria — so the format you order works for your margin instead of eating into it.
Two methods, two industrial logics
IQF (Individual Quick Freezing) freezes each piece separately, at very low temperature and high throughput, before packing. Every portion stays independent: you draw exactly the number of pieces you need, without thawing the rest of the batch.
Block freezing sets an entire pack into a single solid mass. Faster to produce and cheaper per kilo, it does require you to process the whole block once it is opened.
IQF: piece-by-piece flexibility
IQF’s primary advantage is operational. For anyone who portions, breads or smokes to order, that granularity translates directly into material yield.
Where IQF makes the difference
- Production to order or in short runs, with multiple SKUs.
- Precise portioning (fillets, steaks, slices) with no breakage on pieces frozen together.
- Tight stock rotation and less waste on end-of-run remainders.
The right format is not the cheapest per kilo — it’s the one that protects your yield once thawed.
Block freezing: volume at the best cost
When your process consumes regular, predictable volumes, the block regains the edge. Cost per kilo is lower, logistics are simpler, and bulk transformation yield (cooking, mincing, ready meals) stays excellent as long as the entire block goes into production.
The block wins when…
- Volumes are stable and planned, with no daily trade-offs.
- The finished product doesn’t depend on the integrity of the piece (slices, stuffing, ready meals).
- The priority is price per kilo and purchasing simplicity.
| Criterion | IQF | Block |
|---|---|---|
| Cost per kilo | Higher | Lower |
| Draw-down flexibility | High (piece by piece) | Low (whole block) |
| Loss / waste | Reduced | Variable, depends on planning |
| Ideal use | Portioning, to order | Bulk transformation |
How to choose for your process
The right question isn’t “which one is best?” but “which one fits my cadence?”. Map three parameters: the regularity of your volumes, the labour cost tied up in thawing, and the degree of integrity your finished piece demands. A premium cutting room will lean IQF; a ready-meal line, towards the block.
Key takeaways
- IQF: flexibility, portioning, reduced losses — at a higher cost per kilo.
- Block: controlled cost and volume, provided the whole block moves.
- The real trade-off is yield after thawing, not the raw purchase price.
- A consistent grade from one batch to the next removes the variable that skews every calculation.
What grade consistency changes on arrival
IQF or block, a format is only as good as the regularity of what’s inside it. A grade that shifts from one pallet to the next ruins the predictability of your yield, whatever the freezing method. That’s exactly where our batches are calibrated to the number: what you order is what arrives, batch after batch.
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