NUK Perfect Match Glass Baby Bottles Set - Rainbow - 4 Count

The indicator on the side of the bottle changes color based on the milk temperature. White indicates the milk is too hot. Blue indicates the milk is at a safe, cool temperature for feeding. If no color change appears, it suggests the milk is room temperature or cool. Always test milk temperature on your wrist before feeding, even with the indicator.

This bottle set is suitable from birth. The included teats are typically slow-flow (size 1), ideal for newborns. As your baby grows, you can purchase NUK teats in larger sizes (2 or 3) for faster milk flow.

These NUK bottles are designed to be used with NUK brand teats to ensure proper fit and function, especially with the integrated Anti-Colic vent system.

It is recommended to replace teats every 1-2 months, or sooner if they show signs of wear, such as stretching, tearing, or stickiness, to ensure hygiene and proper milk flow.

While made of durable glass, they are not unbreakable. Handle with care to avoid dropping. If a bottle cracks or breaks, it should be safely discarded.

Yes, glass bottles can be used for warming milk. You can use a bottle warmer, place the bottle in a bowl of warm water, or warm it under running water. Avoid using a microwave as it can lead to uneven heating and potential hotspots.

Please refer to the NUK product packaging or the official NUK website for specific warranty information, as warranty terms can vary by region and retailer.

Ensure the Anti-Colic vent is functioning correctly and that the teat is properly seated. Check that the teat size is appropriate for the baby's age and milk flow preference. Verify the bottle is held at an appropriate angle during feeding.

Ensure the vent hole on the teat is clear and not blocked. Try a different teat size if the current one seems too slow or too fast for your baby. Ensure the teat is not collapsed during feeding.

Ensure the indicator strip is clean and dry. Note that the indicator is a guide and should not be solely relied upon; always test milk temperature by hand. If the indicator is damaged, replace the bottle.

Disassemble the bottle completely into its four parts. Use a bottle brush to reach inside the bottle and around the teat. Ensure all parts are rinsed thoroughly after washing.

Ensure the screw ring is tightened securely onto the bottle and that the teat is properly seated within the ring. Check the lid is firmly in place for transport.