Introducing a cup: open, straw, and sippy
A cup is a small skill that pays off for years, and the good news is your baby can start practicing around 6 months, right when solids begin. You do not need anything fancy. You need a little water, a low bar for spills, and a bit of patience.
Start around 6 months, with meals
Once your baby is sitting up and eating solids, offer a few sips of water in a cup at meals. This is practice, not hydration: breast milk or formula is still doing the heavy lifting. See when babies can have water for the full picture on how much and why.
Open cup or straw cup, not the hard spout
Both an open cup (a tiny one you steady for them) and a straw cup are better for mouth and speech development than a hard-spout sippy cup. With a spout, the tongue pushes forward the way it does with a bottle. With a straw or an open rim, the lips and tongue work the way they will for talking. Sippy cups are not harmful, they are just the least useful pick if you have a choice.
How to teach the straw
Drop a straw into water, cap the top with your finger so a little water stays inside, then release it into your baby's mouth so they connect sucking with a reward. A squeezable straw cup does the same thing with a gentle squeeze. Most babies figure it out within a few days, so keep it light and let them play with it.
Expect spills, that is the job
Start with tiny amounts and assume it will end up on the tray, the bib, and the floor. Spilling is how they learn where the cup is and how much to tip. A splash mat and a shrug go a long way. Water only under 12 months, and no juice, which offers little that whole fruit does not do better.
Aim to move off bottles by 12 to 18 months
All this early cup practice sets up an easier goodbye to the bottle. The common target is to be off bottles by around 12 to 18 months, and having a cup your baby already likes makes that far less dramatic. See weaning off the bottle for a gentle step-by-step.
This is general information, not medical advice. Talk to your pediatrician about your baby's readiness, how much water is right, and any feeding concerns.
Frequently asked questions
What kind of cup is best for a baby?
An open cup (a small one you help hold) or a straw cup, offered from around 6 months. Both are better for the mouth and for speech development than a hard-spout sippy cup, because the tongue and lips move the way they do for talking. Sippy cups are not dangerous, they are just the least useful of the three.
When should I start offering a cup?
Around 6 months, alongside solids, offer a little water in an open or straw cup with meals. Starting early gives your baby lots of low-stakes practice before the bottle needs to go, and it makes the switch off bottles much smoother later.
How do I teach my baby to use a straw?
One trick: put a straw in water, cap the top with your finger to trap a little liquid, and release it into their mouth so they get the idea that sucking brings water. Squeezable straw cups do the same job. Most babies get it with a few days of trying, so keep it playful and let them experiment.
How much water should a baby drink from a cup?
Very little, and that is fine. Under 12 months, water is just for practice and sips with meals, since breast milk or formula still covers hydration. A few small sips at each meal is plenty. Water only under a year, no juice.
Track it in Yummy Yucky
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Start tracking for freeHow we write these: from widely published pediatric guidance (AAP, NIAID 2017 guidelines, the LEAP study), with sources cited on every page. Pending review by a pediatric professional.
This is general information, not medical advice, and has not been individually reviewed for your baby. Always talk to your pediatrician about your baby's diet, introducing allergens, and any reaction. In an emergency, contact emergency services.
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