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The Food and Drug Administration sends warning letters to entities under its jurisdiction as part of its enforcement activities. Some letters are not posted for public view until weeks or months after they are sent. Business owners have 15 days to respond to FDA warning letters.

Warning letters often are not issued until a company has been given months to years to correct problems. Chang and Son Enterprises Inc. Whately, MA The FDA has warned a food firm in Massachesseutts after testing of their mung bean sprouts at the company’s sprouting operation and at retailers found Listeria monocytogenes.



The FDA analyzed an environmental sample, which consisted of 15 environmental swabs collected on Dec. 20, 2023, from Chang and Son Enterprises Inc.’s sprouting operation in Whately, MA, by the Commonwealth of Massachusetts Department of Agricultural Resources (MDAR) and determined that two of the fifteen swabs were positive for the presence of Listeria monocytogenes.

Based on the FDA’s analysis of the environmental samples, the FDA has determined that the firm’s mung bean and soybean sprouts are adulterated in that they have been prepared, packed, or held under insanitary conditions whereby they may have been rendered injurious to health. Additionally, based on evaluation of whole genome sequence (WGS) analysis, the FDA determined that the isolates from this sample match each other and 10 other Listeria monocytogenes that were isolated from several product samples collected fr.

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