202310-04 スウォンジー大学
◆研究によれば、ミルク調製機の85%が70℃以上の水温に達せず、感染を防ぐために必要な水温に達していないことが判明しました。このため、ミルク調製機を使用する場合、水温を確認し、70℃未満の場合は使用しないように勧告されています。
◆湯を沸かすケトルを使用する場合も、十分に高い水温が確保されないことがあり、感染のリスクがあるため、注意が必要です。感染症を予防するため、幼児用ミルクの調製には十分な高温の水を使用することが重要です。
<関連情報>
- https://www.swansea.ac.uk/press-office/news-events/news/2023/10/study-raises-concerns-over-powdered-infant-formula-preparation-machines.php
- https://onlinelibrary.wiley.com/doi/10.1111/mcn.13567
家庭での粉ミルク調製の安全性: 地域科学プロジェクト The safety of at home powdered infant formula preparation: A community science project
Aimee Grant, Sara Jones, Vicky Sibson, Rebecca Ellis, Abbie Dolling, Tara McNamara, Jonie Cooper, Susan Dvorak, Sharon Breward, Phyll Buchanan, Emma Yhnell, Amy Brown
Maternal & Child Nutrition Published: 04 October 2023
DOI:https://doi.org/10.1111/mcn.13567
Abstract
Formula fed infants experience gastrointestinal infections at higher rates than breastfed infants, due in part to bacteria in powdered infant formula (PIF) and bacterial contamination of infant feeding equipment. The United Kingdom National Health Service (UK NHS) has adopted the World Health Organization recommendation that water used to reconstitute PIF is ≥70°C to eliminate bacteria. We used community science methods to co-design an at home experiment and online questionnaire (‘research diary’) to explore the safety of PIF preparation compared to UK NHS guidelines. 200 UK-based parents of infants aged ≤12 months were recruited; 151 provided data on PIF preparation, and 143 were included in the analysis of water temperatures used to reconstitute PIF. Only 14.9% (n = 11) of 74 PIF preparation machines produced a water temperature of ≥70°C compared with 78.3% (n = 54) of 69 kettle users (p < 0.001). The mean temperature of water dispensed by PIF preparation machines was 9°C lower than kettles (Machine M = 65.78°C, Kettle M = 75.29°C). Many parents did not always fully follow NHS safer PIF preparation guidance, and parents did not appear to understand the potential risks of PIF bacterial contamination. Parents should be advised that the water dispensed by PIF preparation machines may be below 70°C, and could result in bacteria remaining in infant formula, potentially leading to gastrointestinal infections. PIF labelling should advise that water used to prepare PIF should be ≥70°C and highight the risks of not using sufficiently hot water, per WHO Europe advice. There is an urgent need for stronger consumer protections regarding PIF preparation devices.
Key points
- Only 14.9% (n = 11) of 74 PIF preparation machines produced a water temperature of ≥70°C compared with 78.3% (n = 54) of 69 kettle users (p < 0.001).
- The mean temperature of water dispensed by PIF preparation machines was 9°C lower than kettles (Machine M = 65.78°C, Kettle M = 75.29°C).
- Most parents routinely washed and sterilised bottles and teats.
- Many parents did not always fully follow NHS safer PIF preparation guidance, including 21.8% washing their hands half the time or less, and 14.6% regularly pre-preparing bottles.
- Most parents did not appear to understand the risks of PIF bacterial contamination.
