To boil water for formula, measure the required amount of cold tap water, boil it for one minute, and then let it cool for no more than 30 minutes before preparing the formula. The water needs to be at least 158°F (70°C) to effectively kill bacteria in the formula powder.
Here's a more detailed breakdown:
Steps for Boiling Water for Formula:
- Measure the Water: Use fresh, cold tap water. Measure out the precise amount of water required according to your formula instructions.
- Boil the Water: Bring the water to a rolling boil. Let it boil vigorously for one minute. This ensures any potentially harmful bacteria are killed.
- Cool the Water: Allow the water to cool for no more than 30 minutes. The World Health Organization (WHO) recommends that water used to prepare formula should be no cooler than 70°C (158°F) to effectively sanitize the formula powder. Use a thermometer to check the temperature if necessary. Waiting longer than 30 minutes may mean the water is too cool.
- Prepare the Formula: Once the water has cooled sufficiently but is still above 158°F (70°C), prepare the formula according to the manufacturer's instructions.
- Cool the Formula (If Necessary): After mixing the formula, if it's too hot, cool it quickly under cold running water or in an ice bath. Always test the temperature of the formula on your wrist before feeding it to your baby. It should be lukewarm, not hot.
Important Considerations:
- Why Boil? Boiling water is crucial for sterilizing both the water and the formula powder. Infant formula, even when produced under strict conditions, can sometimes contain bacteria like Cronobacter sakazakii and Salmonella, which can cause serious illness in infants.
- Use Fresh Water Each Time: Always use freshly boiled water for each bottle. Do not re-boil water as this can concentrate minerals and impurities.
- Sterilize Equipment: Ensure all bottles, nipples, and other feeding equipment are properly sterilized before each use.
By following these steps, you can safely prepare formula for your baby and minimize the risk of bacterial contamination.