At What Temperature Does Coliform Die?

The World Health Organization (WHO) notes that bacteria are rapidly killed at temperatures above 149°F (65°C). This temperature is below that of boiling water or even a simmer.

Does heat kill coliform?

Water can be disinfected of coliform bacteria and E. coli by boiling it for at least one minute. This high temperature will kill all microorganisms that could be in the water.

What kills coliform?

First, if total coliform bacteria are found in a water sample, it indicates surface contamination (from construction or recent repairs) has reached the water and disease causing organisms may be present. Second, total coliform bacteria can be killed by disinfection, meaning chlorination or boiling of the water.