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At what temperature do germs die?

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It really depends on the microorganism. Many mesophilic microorganisms do not tolerate temperatures above 45–50°C although thermophiles and hyperthermophiles are quite happy at temperatures in excess of 60°C and 75°C, respectively. read more

Mostly mesophilic organisms do die fairly rapidly at temperatures above 50°C (again, depending on the organism) which is why procedures such as Pasteurization processes (such as 72°C for 15 s) are commonly used for reduce microbial loads in food stuffs. read more

Since most viruses are deactivated at temperatures between 165 and 212 degrees Fahrenheit, food scientists advise to heat up meat to at least 165 degrees before serving. These temperatures kill bacteria, as well. Viruses can withstand freezing temperatures, however. read more

1) Psychrophiles-cold loving bacteria. 2) Mesophiles- Moderate temperature loving bacteria. 3) Thermophiles- Heat loving bacteria. At very low temperature the growth of the mesophiles is stopped and some get killed be the crystallisation of water to ice. read more

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