A liquid enzyme formulation, an enzyme granule formulation, methods for manufacturing enzyme granules using a fluid bed dryer, wherein the enzyme granules are thermostable without the need for a thermostable coating is provided. The enzyme granules are phytase granules used in the manufacturing of an animal feed, wherein the phytase granule is thermostable without the need for a thermostable coating and the phytase retains about 63% to about 134% of its activity after pelleting at 80°C.本發明提供液體酶調配物、酶顆粒調配物、使用流化床乾燥器製造酶顆粒之方法，其中該等酶顆粒無需熱穩定塗層即具有熱穩定性。該等酶顆粒係用於製造動物飼料之植酸酶顆粒，其中該植酸酶顆粒無需熱穩定塗層即具有熱穩定性，且該植酸酶在80℃下造粒後保留其活性之約63%至約134%。
