Freezing & Thawing

Pork, Beef and Poultry Rapid Defrosting with Radio Frequency

In the meat processing industry, more than half of the raw material utilised is frozen: chicken, pork, beef, turkey, etc.
This happens to ensure its preservation during transport between farms, processors and consumers. Sometimes the meat is purchased in large quantities when the price is lower, therefore, is frozen and stored for several weeks or months until processing.

When meat has to be processed, it is often first tempered or thawed using conventional methods available. These methods introduce a number of difficulties directly related to the heat transfer mechanisms: (more…)

Fish & Seafood Rapid Defrosting with Radio Frequency

In the fish processing industry, more than half of the raw material utilised is frozen: squid, mackerel, shrimps, prawns, mussels, calamari, …etc.

Seasonal fluctuations in the availability of fresh fish are a serious impediment to the continuous operation of processing plants: it is possible in principle to regulate fish supply discontinuities by freezing, without significantly impairing the quality of the final product.

When fish has to be processed, it is often first tempered or defrosted using conventional methods available. These methods introduce a number of difficulties directly related to the heat transfer mechanisms: (more…)

Thawing Systems

Kometos Oy provides thawing systems for efficient and controlled defrosting of any deep-frozen food products. Thawing equipment is perfectly suited e.g. for defrosting of meat, fish and poultry products.

Integrated thawing rooms installed in customers’ premises, thawing containers as well as thawing equipment have been designed and manufactured to ensure processed progress of functions, which in turn translates into high levels of quality and hygiene of handled food products, as well as minimum product loss in the thawing process. (more…)

Batch Freezer for discontinuous cooling, freezing and surface hardening

Cryogenic Freezing Cabinets

Cryogenic batch freezers use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for discontinuous cooling and freezing. Controlled injection of the cryogenic gas lowers the temperature in the cabinet as the gas immediately evaporates. The latent heat of evaporation is the main source of cooling energy. Fans spread the gas in the cabinet in a controlled way and efficiently transfer the cold to the product’s surface. (more…)

Water Defrosting

Overview

Fish defroster is designed for frozen fish block or IQF product defrosting in water. Water defrosting minimises weight loss in defrosting operation. Water defrosting is used when high capacity defrosting process is needed.

Frozen fish blocks are manually loaded in  the defroster in its whole length. If fish is defrosted in boxes, fish together with the boxes can be put into water. Boxes are then removed when the fish is separated from the box surface. (more…)

CryoRoll for IQF foodstuffs for continuous freezing of free rolling products

Cooling and mixing

Rotary drum freezers consist of a sloping cylindrical drum, which is rotating around its axis.
Product and cooling medium are loaded continuously at the highest entrance point of the drum. By the rotating movement, both are intensively mixed while, at the same time, sliding to the lower exit of the drum. The stirring movement and the mixing prevent products from clumping together. Special paddles can be built in to ensure this happens. (more…)

Coating Tumbler

Cryogenic sauce and seasoning coating

Cryogenic Coating

Cryogenic tumblers are used to envelop a substrate with a sauce or another kind of coating. The end-product of the batch process is an IQF (individually quick frozen) added value product. (more…)

Multibelt freezer

Linear freezing tunnel with 3 belts on top of each other

Cryogenic multi-belt freezers use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for continuous cooling and freezing. Multiple superposed conveyor belts move the product backwards and forwards through the freezer. At the end of each belt, the product falls onto the belt below to go back through the freezer. Designs with 3, 7, 9 and 11 levels are quite normal. (more…)

Screw Conveyor for simultaneous conveying and cooling

Introduction

Screw conveyors are not limited to moving products horizontally and upwards; while moving the product, screw conveyors can cool, mix and blend components.
As the product moves, it is gently sprayed and mixed with coolant.  Injecting liquid nitrogen droplets or CO2 dry ice into the screw conveyor ensures efficient and homogenous cooling or freezing.  Exhaust fans extract the waste gases. (more…)

Rotating Cabinet for more homogeneous discontinuous cooling or freezing

Cryogenic Freezing Cabinets

Cryogenic batch freezers use liquefied carbon dioxide (CO2) or liquefied nitrogen (LIN) for discontinuous cooling and freezing. Controlled injection of the cryogenic gas lowers the temperature in the cabinet as it immediately evaporates. The latent heat of evaporation is the main source of cooling energy. Fans spread the gas in the cabinet in a controlled way and efficiently transfer the cold to the product’s surface. (more…)

Linear Tunnel – Top lifting for continuous cooling or freezing

Cryogenic Tunnel

Cryogenic tunnels use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for continuous cooling and freezing. A conveyor belt moves the product along the tunnel. Controlled injection of a cryogenic liquefied gas that immediately evaporates lowers the temperature in the tunnel. The latent heat of evaporation is the main source of cooling energy. Turbulence fans spread the gas in the tunnel in a controlled way and efficiently transfer the cold to the product’s surface. Exhaust fans extract the residual gases. (more…)

Linear Tunnel – Bottom drop for continuous cooling or freezing

Cryogenic Tunnel

Cryogenic tunnels use liquefied carbon dioxide (LCO2) or liquefied nitrogen (LIN) for continuous cooling and freezing. A conveyor belt moves the product along the tunnel. Controlled injection of a cryogenic liquefied gas that immediately evaporates lowers the temperature in the tunnel. The latent heat of evaporation is the main source of cooling energy. Turbulence fans spread the gas in the tunnel in a controlled way and efficiently transfer the cold to the product’s surface. Exhaust fans extract the residual gases. (more…)

High Performance Tunnel Freezer

Increased air velocity results in double performance

Advantages of the high performance tunnel

–  highest freezing capacity for a given floor space
–  lowest possible residence time
–  compact design
–  patented control strategies for temperature and gas flow (more…)