Mesophiles are microorganisms which grow at moderate temperatures between 20 °C and 45 °C and with an optimum growth temperature in the range of 30–39 °C. They are isolated in both soil and water environments; species are found in the Bacteria, Eukarya, and Archaea kingdom.

What is a mesophilic environment?

A mesophile is an organism that grows best in moderate temperature, neither too hot nor too cold, with an optimum growth range from 20 to 45 °C (68 to 113 °F). The term is mainly applied to microorganisms. Organisms that prefer extreme environments are known as extremophiles.

What habitat would you find a mesophile?

Mesophiles are often found living in or on the bodies of humans or other animals. The optimal growth temperature of many pathogenic mesophiles is 37°C (98°F), the normal human body temperature. Mesophilic organisms have important uses in food preparation, including cheese, yogurt, beer and wine.