In vacuum-packaged meat, psychrotrophic facultative anaerobic and anaerobic bacteria can grow and cause different types of spoilage (56). Typically, mesophilic bacteria are those that dominate the initial microbiota of vacuum-packaged meat (4).

Yes, bacteria can absolutely grow on vacuum-sealed meat, and in some cases, the lack of oxygen makes it more dangerous. While vacuum sealing prevents aerobic bacteria (which cause visible mold and foul smells), it creates a perfect environment for anaerobic bacteria, most notably Clostridium botulinum (Botulism) and Listeria. A supportive peer "food safety" warning: because these bacteria don't always change the smell or look of the meat, you might not know it's contaminated. In 2026, food safety experts emphasize that vacuum sealing is not a substitute for refrigeration. If meat is left in a vacuum seal at room temperature, these "silent" bacteria can multiply rapidly. Always keep vacuum-packed meat at or below 4°C (40°F) and follow the "use-by" dates strictly, as the seal only slows spoilage—it doesn't stop it entirely.