What temperature does bacteria grow at?

Answer 1

bacteria grow's at the temperature of 37 degree celsius to 63 degree celsius. if the temperature is more than, 63 degree than bacteria starts to die. food mustn't be warm otherwise bacteria came multiply, so it have to be piping hot.

Answer 2

Most bacteria develop rapidly between 20 and 40 °C. Those that are pathogenic to humans are normally cultivated around body temperature, 37 ±3 °C for fast analysis.

Most bacteria stop growing at temperatures close to 0 °C. Also most bacteria die at about 70 °C, but there are pathogenic bacteria that need 121 °C to be killed off.

Refrigerators shall have max 8°C temperature to reduce bacterial growth, 2 °C for storing of fish (hence ice boxes are used). Food shall be warmed above 70 °C fast and cooled rapidly to below 8 °C to according to EU rules for cooking.

There are though extreme environment bacteria e.g. thermophile ones that thrive in heat, i.e. 45-100 °C. In freezing environments many bacteria go to a kind of hibernation mode, as "spores", where they survive but don't reproduce. Others, the kryophiles, like cold and some can reproduce below 0 °C. Colwellia has metabolism even at -200 °C.