Mesophilic digester or Mesophilic biodigester is a kind of biodigester that operates in temperatures between 20 °C and about 40°, typically 37 °C. This is the most used kind of biodigester in the world. More than 90% of worldwide biodigesters are of this type. Thermophilic digesters are less than 10% of digesters in the world. Mesophilic digesters are used to produce biogas, biofertilizers, and sanitarization mainly in tropical countries such as India and Brazil.