Prevention of Listeria contamination in heat-treated meat products.

Following recent cases of Listeria contamination, we would like to offer some observations.

Heat-treated meat products that follow this procedure:

 

PASTEURIZATION → REFRIGERATION → PACKAGING

 

 

For example, cooked sausages such as Wiener, Bratwurst, etc., and other whole-piece meat products cooked without a direct cooking bag, are susceptible to contamination by microorganisms in the phase following PASTEURIZATION.

After the rapid post-pasteurization cooling, the meat product is moved to the COLD STORAGE ROOM until it is subsequently vacuum-packed in bags for marketing.

During this phase of storage in the chamber at 2°C/4°C, the product—despite having been pasteurized—can become contaminated. Therefore, it is very important that this phase appears in the process FLOW CHART for these types of products as a CRITICAL POINT.

To ensure that the product meets FOOD SAFETY standards, it is ESSENTIAL to add two further phases:

  • FINAL PASTEURIZATION OF THE PACKAGED PRODUCT (80°C until 72°C is reached at the core of the piece).
  • COOLING UNTIL 2°C/4°C is reached at the core of the piece.

 

Sincerely,

R Quality Department.