Psychrophiles or cryophiles (adj. psychrophilic or cryophilic) are extremophilic organisms that are capable of growth and reproduction in low temperatures.
This rule states that, within a limited range, microbial activity doubles for each 10C increase in temperature. For example, mesophilic organisms at 30C.
A psychrophile is an organism that is capable of living and thriving in temperatures ranging from − 20 C to +10 C. The term is often used.
