What Temp Kills Yogurt Starter?
Yogurt starter bacteria are thermophilic, which means they thrive in warm environments. The temperature that kills yogurt starter depends on the specific strain of bacteria used, but generally, a temperature of around 140°F will kill most yogurt starter cultures. When making yogurt at home, it is important to heat the milk to the appropriate temperature to activate the starter culture but not exceed the temperature that could kill it.