PROCESS FOR PRODUCING SPRAY DRIED STARC HYDROLYSATES HAVING A BULK DENSITY BELOW ABOUT 20 POUNDS PER CUBIC FOOT WHICH COMPRISES: (A) HEATING AN AQUEOUS SLURRY CONTAINING FROM ABOUT 20% TO ABOUT 45% BY WEIGHT OF A STARCH HYDROLYSATE HAVING A D.E. OF FROM ABOUT 2 TO ABOUT 30 IN A FIRST, CONFINED ZONE UNDER PRESSURE OF A TEMPERATURE OF FROM ABOUT 210*F. TO ABOUT 300*F.; (B) INJECTING THE SLURRY INTO A SECOND, LARGE VOLUME ZONE INTO CONTACT WICH HEATED AIR HAVING A TEMPERATURE OF FROM ABOUT 320*F. TO ABOUT 450*F. WITH A SUDDEN RELEASE OF THE PRESSURE ON THE SLURRY UPON INJECTION; (C) MAINTAINING CONDITIONS IN THE SECOND ZONE SUCH THAT DRYING TO A MOISTURE CONTENT BELOW ABOUT 3% IS ACHIEVED BEFORE THE RESULTANT DRY SOLIDS ENGAGE AGAINST A COLLECTION SURFACE; AND (D) RECOVERING THE DRIED SOLIDS IN PARTICULATE FORM.