Liofilchem provides a variety of products for the microbiological testings of surfaces.

Liofilchem produces ready-to-use gamma-irradiated, triple-bagged Contact Plates, particularly suitable for use in restricted areas like isolators and clean rooms, for detecting and enumerating microorganisms with neutralization/inactivation of antibiotics and disinfectants/antiseptics. Liofilchem Contact Plates are available in both individual packaging (a transparent peelable blister) and traditional pouch packs.

Liofilchem Contact Slides are ready-to-use devices with two different media coated onto a plastic carrier used for the microbial monitoring of surfaces and fluids, even in the presence of residues of disinfectants. The selective media used allow for the isolation and enumeration of bacteria, yeasts and moulds.

Liofilchem Contam Swab is a microbiological test containing an ISO compliant culture medium for detecting microorganisms directly from surfaces. Stored at room temperature, smeared on a surface, incubated at 37°C for 18-24 hours, the Contam Swab product range delivers an easy and convenient detection of microorganisms, including food pathogens, through a clear color change of the culture medium.

Liofilchem ESC (Easy Surface Checking) swab range, conforms to ISO 18593 and ISO 17604 and includes a new generation of sampling devices for microbiological examination of surfaces, especially recommended for food and pharmaceutical industries.  Available for Neutralizing Rinse Solution, Buffered Peptone Water, D/E Neutralizing Broth, Letheen Broth, Maximum Recovery Diluent, in 5 and 10 mL formats.

Clean Test  is a swab for the detection of protein, fat and sugar residues suitable for checking the effectiveness of the cleaning of work surfaces.  The method, based on the reaction of bicinchoninic acid, produces a purple colouring directly proportional to the concentration of proteins, fats and sugars present on a surface. A pale green, colourless or clear light grey colouring assures the proper cleaning of the surface. In the case of a dark grey solution it is suggested to rinse the surface and/or repeat the test. If the solution turns to light or dark purple, a new cleaning cycle of the surface with suitable detergents is needed.