What is the recommended procedure before sampling a dairy milk tank?

The recommended procedure before sampling a dairy milk tank is to sanitize the valve with a proper strength sanitizer. This step is crucial because the valve is the point of access to the milk, and any contaminants present on it can transfer into the sample, compromising its integrity. By ensuring that the valve is sanitized effectively, you minimize the risk of microbial contamination and ensure that the sample accurately represents the quality of the milk in the tank.

Proper sanitation protocols are essential in the dairy industry to maintain hygiene standards and ensure that the milk being tested is safe and meets regulatory requirements.

Using a chemical disinfectant or putting sanitizer on a plastic bag does not directly address the need for sanitizing the valve itself, which is the point most likely to harbor contaminants. Skipping the cleaning of the valve entirely would increase the risk of contamination and is contrary to best practices in sample collection. Therefore, focusing on sanitizing the valve effectively aligns with the goal of obtaining a reliable and safe milk sample for analysis.