During the process of sample collection, transportation, and storage, it is essential to implement appropriate measures to prevent cross-contamination, environmental pollution, and any changes in the microbial quantity or viability in food samples. Proper handling ensures the integrity and reliability of test results.
The samples should be transported as close as possible to their original storage temperature. For frozen and refrigerated samples, it is crucial that they maintain the required temperature during transit. The sooner the samples reach the laboratory, the better. If the distance is significant, samples that do not require freezing should be kept in a 2°C to 5°C environment to maintain stability.
For frozen products, if thawing is acceptable, they can be transported either frozen or refrigerated, but the temperature must not exceed 8°C. Once thawed, the samples should not be re-frozen and should be kept cool at all times to avoid degradation.
All samples from pre-packaged products should be collected, packaged, and stored within their warranty period. Each package must have complete identification information, including the manufacturer, batch number, shelf life, and recommended storage temperature, to ensure traceability and proper handling.
Each sample should be clearly labeled with key details such as the sample name, lot number or production date, sampling location, sampling time, and the name of the person who collected the sample. This helps in maintaining accurate records and ensuring proper documentation throughout the testing process.
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