The researchers studied how mixing rice straw ash with food waste affects compost quality. They used different airflow rates and found that a rate of 0.6L/min.kg helped maintain high temperatures for pathogen destruction. The final C:N ratio of the compost mixtures was 11, with pH levels between 7-8 and moisture content between 40-70%. However, the germination index never exceeded 80% in any of the compost mixtures.