Lystn LLC dba Answers Pet Food, a raw pet food manufacturer in Pennsylvania, violated Current Good Manufacturing Practice and Hazard Analysis and Risk-Based Preventive Controls requirements under 21 CFR Part 507, resulting in products prepared under insanitary conditions that posed contamination risks. FDA testing of four product lots purchased in August 2024 detected Salmonella and/or Listeria monocytogenes in all samples, rendering the Answers Pet Food Raw Beef and Straight Chicken formulas adulterated and potentially injurious to health. The facility's significant compliance failures included inadequate preventive controls and sanitary conditions during manufacturing, which led to the FDA issuing a public safety advisory in September 2024.