Composter Biophoskko® (M 90) has dimensions height ± 80 cm, diameter 37-40 cm, made of plastic HDPE (High Density Poly Ethylene) thickness of 3 to 3.3 mm, aeration pipe with Indonesia National Standard (SNI), insulation made of PVC plate with a thickness of 2 mm, painted with quality car paint, and supported by other tools (hinges, locks) resistant to corrosion.

Input capacity Composter Type M is 0.08 to 0.09 m³ (80-90 liter) or equivalent weight of 20-30 kg of organic waste (density ± 200 kg/m3). This Biophoskko Composter Type M have the ability to process waste for approximately 5 to 6 days households produce 12-14 days with a production capability to produce compost. Known, every soul remove waste 2.6 liters one day or 13 liters one family with 5 people.

This Composter is capable of providing sufficient aeration for the operation of the bacteria in green Phoskko activator (GP-1), ensuring the stability of the PH, maintaining the temperature at mesophilic conditions (30-50 degrees C), keeping the humidity at 40-60% moisture content.