When babies are hungry, bottle food should never be too hot or too cold. For this reason, mums and dads check the drinking temperature before every meal. Knowing exactly when the right temperature is reached can be a challenge. That's why NUK First Choice+ baby bottles with Temperature Control function were developed.This is a function that has not yet existed in this form before. To help from feeding the contents of the bottle too hot to your baby, NUK First Choice+ baby bottles now feature the new NUK Temperature Control Indicator. It looks like a thermometer, is located within the graduation marks and the temperature of the contents of the bottle makes it change colour. In the future, the function will help parents to achieve the optimum temperature when feeding their baby.If the food is too hot, the normally blue indicator will turn white. Ideally, the food for feeding should have body temperature (37°C) and corresponds to the mean blue tone on the display. The new Temperature Control function is integrated in NUK First Choice+ bottles made of polyamide and polypropylene.Important: NUK Temperature Control is intended as an additional check. Therefore, the temperature should still be checked manually before actual feeding. To check the food, it is suitable to put a few drops on the inside of the wrist.The most natural teat for your baby - For many years, NUK First Choice has been the first choice for bottle feeding modelled on breastfeeding. With NUK First Choice+ we have managed to get even closer to nature – for healthy jaw development and a drinking sensation as if at a mother’s breast.Natural and shaped correctly for the jaw - The special NUK Shape is modelled on a mother´s nipple as she breastfeeds. It leaves your baby´s tongue and jaw enough room for natural sucking movements.Soft as a mother’s breast - With its new soft zone, the silicone baglet is a better fit against the roof of your baby´s mouth – giving a natural feeling while drinking.No Colic**The NUK Anti-Colic Air System ensures a natural flow to help your baby drink without swallowing air.