SPRAY DRYING
Preservation (Non-thermal)
Spray Drying
PrerequisiteAlso: atomization drying
Atomizing a liquid feed into a hot-air chamber to instantly evaporate water and produce a fine powder (milk, infant formula, protein, instant coffee).
Typical Hazards
- BBiologicalSalmonella amplification in concentrate; biofilm in pre-dryer holding tubes
- CChemicalCarryover from previous product; allergen contamination
- PPhysicalAtomizer wear, scale from chamber
Typical Controls
- Inlet/outlet temperature monitoring
- Powder Aw target
- Environmental monitoring program (powder = high-vigilance for Salmonella, Cronobacter)
- Wet-cleaning and sanitization on schedule
Regulatory Citations
3 cross-references across 1 documents