A. Sampling
Sample the entire portion of food (whole roast, chicken, gravy, etc.) or take
representative samples of 25 g each from different parts of the suspect food because
contamination may be unevenly distributed.
B. Transporting and storage of samples
Transport and examine samples promptly without freezing, if possible, and store at about
10°C until examined. If analysis cannot be started within 8 h or if the sample must be
shipped to the laboratory for analysis, treat it with sterile buffered glycerin-salt solution,
store immediately at -70 to -90°F, and transport it to the laboratory with dry ice, as
described below