The 7 best straw and open cups for your baby's transition off the bottle

The timeline, in the words of the people who set it

The American Academy of Pediatrics recommends offering a cup when your child starts eating solid foods, usually around six months, then reducing bottle feeds slowly and "completing the transition sometime between 12 and 18 months." It adds one more marker that most articles skip: "It's healthiest for kids to drink from an open cup by about 2 years of age."

Early on this is practice, not replacement. Milk or formula is still doing the nutritional work; the cup is a skill being built at the edges of a meal.

The deadline is not arbitrary, and the main reason for it is teeth. The American Academy of Pediatric Dentistry's own best-practice document says that "breastfeeding and bottle use beyond 12 months, especially if frequent and/or nocturnal, are associated with" early childhood caries. The same document names the two dietary facts that decide decay risk in infancy: "the age at which sugar is introduced to a child and the frequency of its consumption." Frequency. Hold on to that — it comes back at the end of this page.

The AAP adds one more consequence of a bottle that outstays its welcome, and it is worth quoting exactly because it is easy to confuse with a different claim further down this page: "Little ones who drink from bottles well into their second year may also have tooth alignment problems and even speech delays, since little mouths need to strengthen the muscles for clear speech." Note what that sentence is about — how long the bottle lasts, not which cup replaces it.

The part that gets overstated

If you have read anything about this online, you have met the rule: skip the sippy, it delays speech. It is repeated with great confidence, and it is stronger than anything a national body actually publishes.

Keep it separate from the sentence quoted above. The AAP does link staying on a bottle into the second year to possible speech delays. It says nothing of the kind about a spouted cup — and those are two different claims that get folded into one another constantly.

Here is the AAP's own sentence on cup type, in full: "You can use a 'sippy' (training) cup with a spouted lid or offer a cup and straw. Some children may choose to drink from an open cup without a straw — and that's just fine, too." Three options, no ranking. Meanwhile the American Speech-Language-Hearing Association's family-facing feeding milestones list "drinks from a sippy cup without help; can drink from an open cup with some spilling" as ordinary development at twelve to eighteen months — a milestone, not a warning.

We went looking for the trial evidence behind the speech claim and did not find it. What exists is clinical practice guidance from feeding therapists, which is a real thing but is not the same thing, and this page is not going to dress one up as the other.

So why do we still lead with open and straw cups? Because of what the AAP does say: an open cup by about two. That is the destination, and a child arrives at it by practicing it, not by aging into it. A straw cup earns its place for a duller reason — it travels, and straws are everywhere a child will eat for the rest of their life. Offering both is about accumulating skills, not about avoiding a hazard.

What to look for

In a straw cup: a weighted bottom, so the first knock does not end the experiment. A food-grade silicone straw, gentler on gums while everything is still being bitten. A design you can take apart, because straws and valves are where residue collects. And ideally a brush in the box — the straw is the part that fails, and no amount of rinsing substitutes for actually cleaning it.

In an open cup: genuinely small. Two ounces, not eight. Silicone rather than glass or hard plastic, so the inevitable drop is uneventful, and a rim that is kind to new teeth.

If your question is the material rather than the stage — how to get plastic out of the drinking path generally, for a toddler or a seven-year-old rather than a baby learning to drink — that is our stainless steel sippy cups and water bottles cheat sheet, not this page. Every cup here is silicone, chosen for the six-to-eighteen-month window.

On valves, honestly: a valve or bite stopper keeps liquid in the straw so the cup does not leak in a bag, at the cost of requiring more suction and adding one more part to brush and dry. A free-flowing straw is easier to learn on and will leak. Two of the makers here address it head-on and land on the same side — Olababy says its straw "has no valve to suck against", WeeSprout describes "an open valve" — while mushie and Munchkin say nothing either way and the honey bear avoids the question because you supply the pressure by squeezing. Note that none of these seven claims to be leak-proof: WeeSprout says "spill-resistant", Legendairy says "leak-resistant", and those are different words on purpose. For learning at the table, that is the right trade.

The seven, and the choice behind each

Two are plain open cups, and between them sits the whole first decision. The ezpz Tiny Cup is a straight-sided 2 oz cylinder with nothing else to it. The Olababy First Cup is the same volume, slanted so a baby can see the liquid without tipping their head back, on a wider weighted base. Both are 2 oz on purpose.

Two convert, which is the sensible buy if you would rather own one cup than two. Munchkin's C'est Silicone! is 4 oz and "converts from open cup to straw cup to grow with your child"; Olababy's training cup is 5 oz, does the same thing lid-off and lid-on, and is the only one on the page that tells you its straw has no valve. Munchkin is the cheaper entry per cup and the name you already know; Olababy publishes the broader material claim and sells the lid and straw as replaceable parts, so the piece that fails first does not condemn the cup.

Three are straw cups proper, and they differ on the things that actually decide whether a cup gets used. mushie's 6 oz cup has two handles and the most specific safety wording on this page — the only one that names which standards its third-party testing was against. WeeSprout's set is two cups in one box with the straw cleaner included — and the spare matters more than it sounds when the first one is in the dishwasher at dinner time. And the Legendairy Milk honey bear is the outlier: a squeeze cup, rated from four months, for a baby who has the lip seal but cannot yet draw suction — the shape borrowed from feeding therapy, where an adult supplies the pressure until the child takes over.

Fill an open cup with about half an inch of water at first. The mess is proportional to the volume, and a small volume makes this a manageable daily thing rather than an event.

Two habits worth setting now

Sit down to drink. This is the habit with hard numbers behind it. Keim and colleagues, writing in Pediatrics in June 2012, pulled twenty years of US emergency-department records — 1991 to 2010 — for children under three injured while using a bottle, pacifier or sippy cup. Their estimate: 45,398 such injuries over the period, an average of 2,270 a year. Bottles accounted for 65.8 percent, pacifiers 19.9 percent and sippy cups 14.3 percent. The mouth was the most commonly injured area (71.0 percent) and lacerations the most common diagnosis (70.4 percent).

Two figures from that paper decide what you actually do about it. 86.1 percent of the injuries were falls that happened while the child was using the product — and product malfunctions accounted for only 4.4 percent of cases. It is not the cup failing. It is walking with the cup. One-year-olds, new on their feet, were injured most often. Drinking sitting down is the entire intervention.

Keep the cup at the table. A cup carried around all day, containing anything other than water, keeps teeth exposed to sugars for hours — and frequency is precisely what the AAPD names as one of the two things that drive decay risk in infancy. The AAP's position on juice runs along the same line: none before twelve months, because it "can increase risk of tooth decay and cause a preference for sweeter flavors instead of plain water", then no more than four ounces a day and never at bedtime. Cups at meals, water in between. It is an easy habit to set at six months and a hard one to undo at two.

What we could not confirm

Four of the seven cups here come from makers that publish no lead-free claim anywhere — mushie, Munchkin, WeeSprout and Legendairy Milk. Two makers do address it, covering three of the cups: ezpz and Olababy. That is an absence of a claim, not evidence of lead, and silicone is not a material where lead is expected. We are flagging it because a shopper comparing two boxes on a shelf would never see that difference.

"Third-party tested" is doing very different work on different pages. mushie names three standards. Olababy names an FDA regulation. ezpz says an annual third-party laboratory test but not what against. WeeSprout says "rigorous safety standards" and names none. Munchkin cites material grades, which are not a test. Legendairy Milk makes no testing claim at all. That spread was the single most useful thing we found reading these pages, and none of it is visible on the packaging.

We did not find the evidence behind the speech claim. Not "we disagree with it" — we looked for a published body of work establishing that a spouted cup delays speech or oral development, and what we found was clinical practice guidance rather than trials, against national guidance that treats sippy-cup drinking as an ordinary milestone. If that evidence exists, we will cite it here and say we were wrong.