Do you know how to dissolve powdered milk (adjusted milk for baby/infant) in hot water of 70°C or higher?

It is to sterilize pathogens in powdered milk.

It is a very small amount, but it is considered a problem because the powdered milk itself and the melted powdered milk contain bacteria such as "Cronobacter sakazakii (Sakazaki bacteria)" and "Salmonella enterica (Salmonella bacteria)". .

• What is Cronobacter sakazakii (Sakazaki bacteria)?
  Sakazaki bacteria can also be detected in human and animal intestinal tract and fruits and vegetables such as corn, cucumber, and lemon. baby/infant (children under one year old), especially premature, immunodeficiency, and low birth weight infants, may cause "sepsis" or "necrotic enteritis" in serious cases. It is said that if an adult is infected, the symptoms are quite mild.
  It is known that Sakazaki bacteria are more abundant in the production environment of powdered milk compared to Salmonella bacteria, but according to research on welfare and labor science, the amount contained in Japanese products is very small, and one in 333g. It has been reported.
• What is Salmonella enterica (H. Salmonella)?
  Salmonella bacteria are bacteria that mainly inhabit the intestinal tract of humans and animals, and there are many types, some of which cause chiffus disease and food poisoning such as diarrhea and fever. Salmonella bacteria are rarely mixed in the production process of powdered milk. After opening the powdered milk, it seems that it may be mixed when dissolving or dissolving the powdered milk.

Both Sakazaki and Salmonella do not increase in dry powdered milk, but can survive. In other words, it may be mixed into the powdered milk after opening and survive for a long time.
(There are reports that Sakazaki bacteria survived for more than a year in dry powdered milk.)

Sakazaki bacteria and Salmonella bacteria in the powdered milk after melting can be suppressed by keeping them below 5 ° C, but if placed at a higher temperature (such as room temperature), it will increase rapidly There is a risk.

• Wash your hands with soap and water before making powdered milk.
• Wash and disinfect the equipment you use, such as baby bottles and spoons.
• When dissolving powdered milk, use hot water of 70 ° C or higher.
• Powdered milk dissolved in hot water should be applied to running water or placed in a container containing cold or ice water, and cooled in a short time until the temperature can be breastfeeded.
• After melting, throw away milk that was not used within 2 hours.
• Let's throw away the leftover milk.

＞＞ Click here for detailed milk preparation method (PDF: 236KB)

This is a summary of the contents of this page (2 A4 size sheets). Please use it for educational purposes.

• Do you know how to dissolve powdered milk (adjusted milk for baby/infant) with hot water of 70°C or higher? （PDF：393KB）

1. Guidelines 2007 (FAO/WHO) for safe preparation, storage and handling of adjusted milk powder for baby/infant
2. Pathogenic Microbial Detection Information Monthly Report (IASR) vol.29 p223-224 (August 2008 issue)
3. Enterobacter Sakazakii-related information overseas (external site) (National Institute of Health, Labor and Welfare, Japan)
4. Q&A (provisional translation) on Enterobacter sakazakii in prepared milk for childcare (external site) (Ministry of Health, Labour and Welfare website)
5. Cronobacter Sakazakii (formerly Enterobacter sakazakii) (external site) (WHO WEB page)

First published on August 21, 2009