Why is E Coli placed at 4 degrees celsias?

E. coli is typically stored at 4 degrees Celsius to slow down its metabolic activity and inhibit growth, preserving its viability for research and laboratory purposes. This temperature helps maintain the bacteria's genetic integrity and reduces the risk of contamination or overgrowth. Additionally, refrigeration minimizes the chances of pathogenic strains proliferating, ensuring safety in handling and experimentation.