Start with the product and target format
A shrimp IQF line should be planned around shrimp condition, size range, hourly capacity and the final product format. Raw and cooked shrimp may need different washing, cooling, grading and temperature-control arrangements before freezing.
Where grading fits in the line
Washing and inspection normally prepare the shrimp before grading. Cooked shrimp should be cooled before mechanical grading because warm product is more fragile. An even feed from the grader helps the downstream freezer receive a predictable product load.
IQF freezing and glazing
After grading, shrimp can be distributed evenly into an IQF freezer. The freezer configuration depends on product size, target core temperature, residence time, factory space and required capacity. Glazing may then be used to add a controlled protective ice layer, subject to the product specification and customer requirements.
Hardening and packing
A hardening stage can help stabilize the glazed product before weighing and packing. The exact sequence depends on the glazing method, package format, storage condition and plant layout. Conveyors, elevators and transfer points should be checked so that product is not damaged or accumulated between stages.
- Confirm shrimp condition and size range
- Define target capacity and grade count
- Control product temperature before and after freezing
- Match freezer, glazing, hardening and packing capacity
- Provide cleaning access and suitable drainage
Information needed for line design
Provide shrimp species, raw or cooked condition, incoming size range, target capacity, number of grades, product temperatures, glazing requirement, packing format, power standard and available factory space. A process flow sketch and product photos can help the engineering team prepare a practical proposal.
See our shrimp grading machine, spiral IQF freezer and seafood freezing line pages, or send an equipment inquiry.