Disinfectant testing

Disinfectant testing is key to the production of safe and wholesome foods. We provide advice and testing of disinfectants and cleaning materials.

Contact us

Before you Send please insert the same letters and numbers you see in this image captcha_image into this box: (this helps us fight spam)


When you click on the Send button you will be deemed to have accepted our terms and conditions

You may also be interested in

Transcript

Disinfectants should reduce levels of pathogens so that they do not cause disease, and reduce spoilage organism to minimise product contamination.


There are specific standards for laboratory testing of disinfection claims – such as the EN methods used in Europe. The method chosen depends on where and how the disinfectants are used and the specific target micro-organisms. All are tested in a 3 phase process - with each successive phase simulating in-use conditions more closely.


Phase 1 tests the formulation's active ingredients individually. Each ingredient is diluted in sterile distilled water; micro-organisms are added, and the reduction in microbial count in a given time is calculated.


Phase 2 testing is on disinfectant formulations as sold. Phase 2 Step 1 tests use aqueous suspensions, a wider range of test organisms and an interfering substance to simulate typical dirt the formulation will encounter.


Phase 2 step 2 tests are carrier tests in which micro–organisms with interfering substance are dried on to stainless steel discs, and the disinfectant formulations then tested.


In both steps 1 and 2, the reduction in microbial count in a given time is determined.


Phase 3 tests are field trials.


These validate the disinfectant in real life situations. They are normally performed over a number of weeks. The number of micro–organisms present on surfaces can be determined before cleaning, after cleaning and after disinfection.


Results can be compared to ascertain whether there is a reduction at each stage of the clean, and to compare the effects of the trial disinfectant with an existing product.

More on Analysis and testing

Dog eating out of pet food bowl

Pet foods and the unknown risk to human health

Over the years, the pet food industry has suffered several foods scares resulting in adverse health effects to those owning pets and financial impacts. In th...


Meat balls

Meat testing – ensuring quality and safety

Testing of meat and meat products can be used to assess quality, safety, performance and compliance with prescribed standards, both external and internal, an...


Scientist looking into microscope

Packaging under the microscope

This webinar explains how microscopy techniques can be used to assess the plastics and metals commonly used in food and drink packaging. ...


Pizza in takeaway box

Bans of perfluoroalkyl substances (PFAS) in food packaging gain traction: Get ready with PFAS testing

Governments around the world are currently trying to remove PFAS from the food supply, as well as the environment. A patchwork of new legislations in recent ...


supermarket shelves

List of food recalls for ethylene oxide grows

European countries and the UK are facing more ethylene oxide related recalls after the substance was detected in more food additives used in a large range of...


Allergen labelling for foods prepacked for direct sale (PPDS)

Allergen labelling for foods prepacked for direct sale (PPDS)

From 1 October 2021 in England, Wales, Scotland and Northern Ireland, any food that is prepacked for direct sale (PPDS) must have appropriate labelling.



Contact an expert