Feed material consists of mixing fine sieved mulch with bean curd and filling the chamber loosely with the mix. Air is pumped in to enhance composting  and a programmable logic controller monitors and adjusts the flow rate to obtain the optimum parameters of temperature and carbon dioxide. In-vessel  composting is completed in 14 days and the compost is taken out to cure for 7 days. Through good manufacturing practices, our compost is able to meet  N Parks new standards for compost and soil mix.