Which of the following is considered potentially hazardous food?

Hamburgers are considered potentially hazardous food because they contain proteins that can support the growth of harmful bacteria when stored at improper temperatures. Raw or undercooked ground beef can harbor pathogens like E. coli or Salmonella. These microorganisms thrive in environments where moisture and nutrients are abundant, which is typically the case with raw meat.

In contrast, canned vegetables, pasta, and dry grains are not considered potentially hazardous because they are either processed to eliminate bacteria or have low moisture levels that inhibit microbial growth. Canned vegetables are cooked and sealed in a way that preserves them without refrigeration, while pasta and dry grains have a low water content, making them less susceptible to bacterial growth when stored properly.