

From parents who've worn more milk than they've served
The Nuby Rapid Cool Baby Bottle Maker Twin Pack is a decent option for quickly cooling formula, though some parents report issues with the instructions and functionality. It seems to work well for some but not others, with mixed reviews on its ease of use and effectiveness.
Experiment with filling the Rapid Cool flask with your own pre-cooled water rather than straight from the kettle, as this may help avoid tummy issues for your baby.
Measure your baby's feed size using their regular bottle before filling the Rapid Cool flask, to ensure you're adding the correct amount of water.