Views: 0 Author: Site Editor Publish Time: 2026-05-07 Origin: Site
Product: Soft & hard cheese, shredded cheese, mozzarella cheese
Application: Individual Quick Freezing (IQF) line
Evaporator Type: Custom-designed air cooler for low-temperature IQF tunnel
Challenges
Cheese contains high moisture and fat, easy to stick together during freezing.
High humidity in the freezing zone causes rapid frosting on evaporator coils.
Strict food hygiene requirements (food-grade, easy to clean, no contamination).
Stable and uniform airflow required to ensure consistent freezing quality.
Defrosting must be efficient to avoid downtime and ice bridging.
Solution Design
Material Selection
Coil tubes: 304/316 stainless steel for corrosion resistance and food safety.
Fins: Larger fin spacing (reduces frost adhesion and clogging).
Casing: Stainless steel with smooth finish, easy to clean and sanitize.
Fan System
EC fans for stepless speed regulation and energy saving.
Optimized airflow velocity to prevent cheese agglomeration.
Low noise, suitable for continuous production.
Defrost System
Hot gas defrost (preferred) or electric defrost with temperature control.
Short defrost cycles to maintain stable tunnel temperature.
Effective condensate drainage to avoid water dripping onto cheese.
Hygiene & Structure
Cased design without dead corners, meets food-grade standards.
Evaporator installed with proper distance to avoid frost falling on products.
Operating temperature: -35℃ ~ -30℃ for IQF cheese.
Results & Benefits
Achieved fast, individual freezing; no sticking or clumping of cheese.
Extended defrost intervals, reduced production interruptions.
High heat exchange efficiency, lower energy consumption.
Fully food-safe design, compliant with food processing standards.
Stable long-term operation, low maintenance cost.
Conclusion
For cheese IQF systems, a stainless steel evaporator with wide fin spacing, EC fans and hot-gas defrost provides the best balance of freezing performance, hygiene and reliability.
