When a clean-looking powder line still produces contaminated product, compare sample location with when the contaminant appears, then investigate suspected reservoirs with recovery-tested surface or rinse sampling.
September 2026's moringa leaf powder recall, set against a year of Salmonella events touching powdered milk and supergreens blends, shows why bulk powder sampling plans can miss low-prevalence contamination and why low water activity slows but does not eliminate pathogen survival.
Practical powder science for engineers, scientists, and process specialists.
Connect powder behavior to relevant measurements and better process decisions.
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