The Most Common Places Listeria is Found

May 27, 2022 2 min read

Listeriais the most common bacteria/pathogen ‘disease causing’ bacteria in the food industry. As a food manufacturer, you will be extremely concerned with the presence ofListeriaand managing this within your facilities. 

The bacteria can be found in many different types of food, mostly concerning chilled and ready-to-eat food. This includes:

  • Smoked fish 
  • Cured meats 
  • Cooked slices of meat 
  • Pre-prepared sandwiches 
  • Raw milk found in food like soft cheeses 

In the UK there are set levels ofListeriathat a food manufacturer must not exceed in the food it produces. You will therefore require aListeriamanagement plan to ensure your products are not contaminated and levels are maintained. 

The Dangers ofListeriabacteria 

Although cases of listeriosis are rare, they can be incredibly dangerous/life threatening if they do occur.Listeriainfections are particularly dangerous for the vulnerable, elderly, pregnant women or sick. 

Symptoms of Listeriosis include:

  • Fever
  • Chills
  • Muscle aches
  • Nausea

The food industry needs to be aware of the dangers ofListeriaand how it can spread and contaminate food. Here we have a list of some of the most common placeListeriais found within food production and processing. 


Drains will quickly become growth areas forListeriaif this has been present in your food production facility in the past. The damp conditions make for the ideal breeding ground forListeriabacteria to grow. 

Although cleaning drains can be a troublesome task and often rather unpleasant, this is necessary when managingListeria

Chillers and Freezers 

The cold and wet of a chiller or freezer provides the ideal environment forListeriato grow. It is therefore essential that freezers and chillers are disinfected regularly. This includes cleaning areas like fans and evaporator plates. 

Cleaning Equipment 

As useful as your cleaning equipment is at managing a clean facility, they themselves also need to be properly maintained. Cleaning equipment has been proven to be one of the most common growth areas forListeria

To keep your cleaning equipment from testing positive forListeria, be certain it is designed properly and well-maintained. 

This includes investing in hygienic technology and equipment which has been designed for the food industry. For example, brushware and tools that have smooth surfaces, can easily be dismantled and do not have many crevices. 

ListeriaManagement from SOS Hygiene 

At SOS Hygiene we work closely with our clients to alleviate food safety concerns. OfferingListeriamanagement to reduce the risk of contamination within food production and processing. Using one or more of our innovative technologies, can tailor a system to be specific to your parameters. Offering a solution to managingListeria

Our solutions include ByotrolListeriamanagement and OzoneListeriamanagement. We also offerVikan cleaning tools with hygienic design, perfect for keeping your facility clean. 

If you would like to know more about ourListeriamanagement and expertise, do not hesitate toget in touch