It is essential that the physical and chemical conditions of the initial mix of organic waste are excellent. In order to achieve optimum moisture, porosity and density values, highly degradable residues are mixed with residues of low degradability.
On the other hand, the purity of the products is guaranteed, an essential condition to guarantee the quality of the final compost.

The microorganisms, main agents in the composting process, need optimal conditions to live. There are four main environmental conditions that regulate the environment of microorganisms.