How to choose frozen fish for production and avoid costly mistakes?
Buying frozen fish seems simple – we compare the price per kilogram, place an order and start production. In practice, however, the lowest price very often does not mean the lowest cost.
Many factors affect final profitability: raw material quality, glaze content, batch consistency, amount of waste, yield after thawing, packaging method and supplier reliability.
For manufacturers of ready meals, diet catering, fish processors or the HoReCa sector, the right choice of frozen fish can translate into lower food cost, more stable production and fewer complaints.
Why is the price per kilogram alone not enough?
One of the most common mistakes is choosing a supplier solely on the basis of price.
For example, two products may cost:
- product A – PLN 34.00/kg,
- product B – PLN 31.50/kg.
At first glance, the cheaper product seems more attractive.
However, after taking into account:
- glaze content,
- loss after thawing,
- amount of waste,
- preparation time,
- labour costs,
- portion consistency,
it may turn out that the more expensive product makes it possible to produce more finished portions at a lower total cost.
That is why professional purchasing departments primarily analyse the cost of the finished portion, and not only the purchase price of one kilogram.
1. Check the glaze content
Glaze protects the fish from drying out during storage.
Its presence is completely normal, but it is worth checking what percentage of the product weight is made up by the ice layer.
The greater the glaze, the smaller the amount of actual meat in the carton.
Before purchasing, it is worth asking the supplier about:
- glaze percentage,
- net weight after deducting glaze,
- labelling method.
This makes it easier to compare offers from different manufacturers.
2. Type of freezing
The most highly valued solution is IQF (Individually Quick Frozen) technology.
Each piece is frozen separately, which means:
- the product does not stick together,
- it is easy to measure out the required quantity,
- losses are reduced,
- production convenience is improved.
This is particularly important for cubes, portions and components used in ready meal production.
3. Product consistency
A process technologist expects every delivery to look identical.
It is worth paying attention to:
- portion size,
- weight,
- thickness,
- meat colour,
- texture.
Consistency makes the following easier:
- dosing,
- production planning,
- quality control,
- maintaining a stable food cost.
4. Does the fish contain skin and bones?
This is one of the most important parameters.
Removing skin or individual bones means:
- additional time,
- higher labour costs,
- risk of complaints,
- a greater amount of waste.
More and more manufacturers choose raw materials already prepared for further use, e.g. cubes or portions without skin and bones.
5. Pay attention to the origin of the fish
A good supplier should clearly specify:
- species,
- catch area,
- country of processing,
- production method,
- batch number.
Full raw material traceability is now the standard in the professional supply chain.
6. Quality documentation
Before starting cooperation, it is worth asking for:
- product specification,
- technical sheet,
- allergen declaration,
- microbiological test results (if required),
- information on quality systems.
A professional supplier provides these documents without any problem.
7. Packaging and logistics
Well-designed packaging makes storage easier.
It is worth checking:
- carton weight,
- how it is stacked on the pallet,
- product protection,
- packaging durability during transport.
This is particularly important for full-pallet purchases.
8. Supply stability
A one-off attractive price is irrelevant if the product will not be available in a month.
When choosing a partner, it is worth asking:
- whether they maintain regular stock,
- what availability looks like throughout the year,
- what the minimum batch sizes are,
- what the standard lead time is.
Long-term cooperation is usually more profitable than constantly changing suppliers.
9. Does the product fit your production?
Not every fish format will work in every plant.
For example:
Whole fillets
- greater flexibility,
- the need for cutting,
- more manual work.
Portions
- quick preparation,
- consistent weight.
Cubes
- ideal for ready meals,
- catering,
- poke bowls,
- salads,
- pasta dishes,
- convenience dishes.
Choosing the right format often delivers greater savings than negotiating a few cents per kilogram.
10. Supplier experience
A good supplier does not only sell a product.
They should help select the right fish format for:
- type of production,
- recipe,
- planned weight,
- line efficiency,
- end customer expectations.
Such advice often helps avoid costly changes after the product has already been implemented.
How to compare supplier offers?
Before making a decision, it is worth preparing a simple list of questions:
✔ What is the actual share of meat after thawing?
✔ Does the product contain glaze?
✔ Are skin or bones present?
✔ Is the product frozen using the IQF method?
✔ Does every batch have an identical format?
✔ What does year-round availability look like?
✔ What are the minimum order quantities?
✔ Does the manufacturer provide full quality documentation?
✔ Is it possible to carry out production trials?
The most common mistakes when buying frozen fish
- choosing solely on the basis of price,
- lack of glaze analysis,
- not taking labour costs into account,
- lack of production tests,
- not taking yield after thawing into account,
- overlooking quality documentation,
- lack of assessment of delivery consistency.
Summary
The purchase of frozen fish should be evaluated not only through the price per kilogram, but above all through the total cost of using the raw material in production.
The best product is one that ensures consistent quality, high yield, stable supply and reduces the amount of manual work and production losses.
Before starting cooperation, it is worth carrying out a technical trial and comparing the actual cost of the finished portion, and not only the purchase price. This approach makes it possible to make purchasing decisions that increase production efficiency and reduce the risk of costly complaints.