Which type of bacteria grows best at temperatures between 50°F - 110°F?

Mesophilic bacteria thrive in moderate temperature ranges, typically between 68°F and 113°F (20°C to 45°C), with optimal growth often occurring around 98.6°F (37°C). This group of bacteria includes many pathogens that can cause foodborne illnesses, which is critical to understand in food safety contexts. The ability of mesophilic bacteria to grow within the specified range of 50°F - 110°F highlights their adaptability to both food storage and processing environments, where temperatures may fluctuate but often remain conducive to their growth.

In contrast, psychrophilic bacteria prefer colder environments, usually below 68°F, while thermophilic bacteria favor high temperatures, often above 113°F. Pathogenic bacteria can encompass various types and may include mesophiles, but the specific growth range leads us to focus more accurately on mesophilic bacteria for this question. Understanding these distinctions is essential for food handlers to ensure food safety and minimize the risks of contamination.