The method follows the surface

An important principle in microbiological sampling is that the method should always be selected based on the surface being tested, not the other way around. Using the wrong method for a specific surface can reduce the accuracy of the test and increase the risk of missing contamination. That is why our inspectors first assess the characteristics of each surface before selecting the most suitable sampling method.

Swab: for complex and non-flat surfaces

The swab is essential for surfaces that are uneven, irregular, or difficult to access. Examples include:

• the inside of machines

• drains

• dispensing points of shake machines

• seams and cracks

Because a swab is flexible, it can adapt to hard-to-reach areas, corners, and irregular shapes. This makes it particularly suitable for high-risk areas and in-depth investigations, where these difficult-to-reach locations often prove to be potential sources of contamination.

Dip-slide: for flat and easily accessible surfaces

The dip-slide is ideal for surfaces that are flat and easily accessible, such as:

• cutting boards

• knives

• work surfaces

• telephones

This method is less suitable for round, narrow, or difficult-to-reach areas, such as drains. In these situations, the dip-slide simply does not provide sufficient contact with the surface to produce a reliable result.