360 Food Safety Manager Practice Test

Botulism risk comes from toxin production by Clostridium botulinum in environments that are anaerobic and low in acidity. Sealed containers, like cans, can create that perfect setting when foods aren’t processed or stored properly. Low-acid foods such as meats and vegetables are especially associated with this risk, because the airtight environment in a can allows spores to grow and toxin to form if the process isn’t done correctly. Fresh fruit, dairy products, and leafy greens are less likely sources because they’re typically consumed fresh or refrigerated, and many are acidic enough or not kept in the anaerobic conditions that promote toxin production. That combination of sealed, low-acid conditions and improper processing is why canned foods are the foods most commonly linked to botulism.