Aldi's latest Baby Event sale includes the Nuby Rapid Cool Duo Pack, a £24.99 gadget designed to cool baby formula to the perfect temperature in minutes. The device, which requires no power supply, is travel-friendly and fits into most changing bags. Aldi claims it reduces fussing by preparing feeds quickly, using freshly boiled water as per NHS guidelines.
How the Rapid Cool Works
The Rapid Cool twin pack operates without batteries or electricity. Parents fill the base with a measured amount of water, add formula scoops, and shake the sealed flask upside down for at least 10 seconds. A digital lid glows amber and then turns green within two to five minutes, indicating the milk is at the ideal temperature. The formula is then poured into a sterilised bottle.
According to Aldi, the device is "super quick" and "without a sound," making it suitable for daytime and nighttime feeds. The set includes two coolers, available in blue, pink, or neutral designs. Aldi adds that the coolers are easy to clean and require no replacement filters.
Sale Details and Other Offers
The Rapid Cool Duo Pack arrives in Aldi stores across the UK on Thursday, July 23, as part of the supermarket's Baby Event. The event features a range of baby products, including toys, clothes, and feeding accessories starting at £1.99. Other standout SpecialBuys include safety gates (£17.99), a bedside crib (£49.99), and a 360° Car Seat (£89.99).
Aldi rotates its middle aisle items every Thursday and Sunday, following weekly themes. Shoppers can stay updated by picking up in-store leaflets or checking online for upcoming offers.
NHS Guidelines for Formula Preparation
The NHS recommends a step-by-step method for preparing safe baby formula: boil fresh tap water and let it cool for up to 30 minutes, add the correct number of formula scoops, and then cool the bottle under running water or in a container of cold water. The Rapid Cool device follows these guidelines, providing a controlled cooling process without overcomplicating it for parents.
Parents are advised to test the milk temperature on their wrist before feeding. The Rapid Cool's digital lid ensures accuracy, turning green only when the feed is at the perfect temperature.



