Abstract Sugarcane mill/press mud is a nutrient-dense source of organic carbon, nitrogen, and phosphorus that is pasteurized during sugar processing. Those characteristics fit the desired product specifications for biofertilizers and biostimulants. This study reports on the predicted metabolic potential of microorganisms in sugarcane mill mud and bagasse compared to those of laboratory and industrial composts. Metabolic functions were inferred from marker (16S rRNA) gene sequence data to predict the potential gene content of the uncultured microbial community using the software PICRUSt. On average, sugar processing byproducts (mill mud and bagasse) had higher alpha diversity and higher predicted functional diversity… Login to continue