Quick Answer
Most babies can start practicing with a straw sippy cup around 6 months, but the ideal time to fully switch from bottle to cup is between 12 and 18 months. Look for signs of readiness like sitting up well and showing interest in your cup.
Why Timing Matters
Introducing a straw cup too early can frustrate your baby, while waiting too long may make the transition harder. Around 6 months, many babies develop the oral skills needed to sip from a straw, but every child is different.
The American Academy of Pediatrics recommends weaning from the bottle by 18 months to reduce the risk of tooth decay and ear infections. Starting straw practice early, even if it’s just for play, helps build the skill gradually.
Signs Your Baby Is Ready
Watch for these cues before offering a straw cup: your baby can sit up with support, shows interest in what you’re drinking, and has started eating solids. These milestones suggest they have the coordination to learn sipping.
If your baby pushes the cup away or gets frustrated, wait a few weeks and try again. Readiness isn’t a race—some babies take to straws quickly, others need more time.
Your Transition Questions, Answered
When should I introduce a sippy cup?
Start offering a straw sippy cup around 6 months, even if it's just for practice. Aim to fully replace bottles by 18 months. Early practice builds the skill, but don't rush the final switch.
How do I know my baby is ready?
Look for these signs: sitting up with support, showing interest in your cup, and having started solids. If your baby resists, wait a few weeks and try again. Readiness cues are more reliable than age alone.
How do I make the switch easier?
Start with one straw cup at a time, offer it during meals when your baby is calm, and be patient. You can also let your baby play with the cup to get used to it. Consistency and patience are key—expect some spills and messes.
A Cup That Grows with Your Child
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b.box + Lansinoh Sippy Cup: The b.box + Lansinoh Sippy Cup features a straw design to help transition from bottle to cup. This design lets your baby practice the sipping motion without the mess, making it a practical tool during the transition.
b.box + Lansinoh Sippy Cup
