Freeze drying and residual moisture.
D000818:Animals; D005612:Freeze Drying / Q000295:instrumentation*; D006813:Humidity; D008892:Milk / Q000382:microbiology; D014118:Toxins, Biological; D014612:Vaccines; D014867:Water / Q000032:analysis*
D014118:Toxins, Biological; D014612:Vaccines; D014867:Water