Why does my Munchkin straw cup leak?

Leaks often result from pressure buildup, incorrect assembly, or temperature differences. Ensure the lid clicks shut, the straw valve is fully seated, and release pressure if using cold liquids.

How can I make it easier for my baby to drink from the Munchkin straw cup?

You can cut the valve inside the straw to ease suction, but this may compromise spill-proofness. Alternatively, try different straw cups like Dr. Brown's.

How do I clean the Munchkin straw cup properly?

Use hot water and a pipe cleaner for the straw; the included brush is insufficient. Some parents replace straws periodically due to mold concerns.

Munchkin

New Munchkin Splash Toddler Cup (7oz, Pink/Purple)

4.8/5 (4)

$4.49$5.78-22%

In Stock

Munchkin Splash Toddler Cup (7oz, Pink/Purple) is a 2-pack of toddler training cups with removable press-fit training lids. Each cup holds 7 oz of liquid for juice, milk, or water and is made from BPA-free plastic. Suitable for ages 18+ months, the cups are top rack dishwasher safe. This is a brand new overstock item that does not ship in the original box.

Color: Black
Gender: unisex
Style: classic, minimal
Category: Baby & Toddler > Nursing & Feeding > Sippy Cups

Color

Pink/Purple

View on merchant site JSON

GTIN: 735282114250
MPN: MUNCHKIN-735282114250-NEWOVERSTOCK-NOBOX-PINK

Specifications

7 piece toddler dining set with divided plate, flat plate, bowl, cup with training lid, and stainless steel utensils, designed for self-feeding and transitioning to big kid utensils.

Stainless steel flatware helps toddlers transition to full-size utensils; grippy bottoms prevent sliding; BPA-free; microwave safe; dishwasher safe (top rack only).

Color: Black · black
Style: classic, minimal
Occasion: gift, everyday
Gender: unisex
Age Group: toddler
Condition: new
Category: Baby & Toddler > Nursing & Feeding > Sippy Cups

Additional Attributes

7 piece dining set includes divided plate, flat plate, bowl, cup with training lid, and stainless steel utensils (fork, knife, & spoon)
Dining set comes beautifully packaged and ready-to-gift
Stainless steel flatware helps toddlers transition to full-size utensils
Grippy bottoms keep plates and bowls from sliding
BPA-free
Microwaveable
Dishwasher top-rack only
For toddlers 18+ months

Image Analysis

1 images

01high: Retail packaged set of stacked plastic cups in a transparent bag with a white cardboard sleeve showing a multicolor munchkin logo, photographed on a white background.
OCR: munchkin
transparent plastic shipping bagwhite cardboard display sleevestacked plastic cupspurple plastic cup rimcoral pink plastic cupwhite plastic cup baseteal hang tabprinted 'munchkin' logogreen recycling iconstudio white backgroundfront product viewsoft even lighting

Brand PDP Lookup

Brand: Munchkin
URL: https://www.munchkin.com/grown-ups-table-splash-dining-set

Grown-Ups Table Splash™ Dining Set

Also Seen Here

3 retailers

target.com
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Munchkin Splash Toddler Cup with Training Lid - 7oz
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amazon.com
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Munchkin® Splash™ Open Toddler Cup with Training Lid, 7 Ounce, Blue (Pack of 2)
Munchkin
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ebay.com
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Munchkin® Splash™ Open Toddler Cup with Training Lid 7 Ounce
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Documents & Data

Customer Reviews

4 total

4.8

4 reviews · out of 5

Amazing

★★★★★Joalys S.22 Mar, 2026

We love the set, so beautiful

Love it!

★★★★★Carmen B.17 Jan, 2026

🤍 It makes mealtime feel so grown up while still being totally toddler friendly. The plates don’t slide everywhere, the utensils feel like real silverware, and cleanup is super easy. Stylish, practical, and perfect for little ones learning to eat on their own. A win for parents and toddlers!

Nice colour for the food

★★★★★Erina M.6 Jan, 2026

I bought this for 2 years old son. This set is gorgeous, looks like an adult dinner set. I don't like bright fluorescent colour dish so this is also good for me! I wish the cup lid has some kind of stopper.

Awesome set

★★★★★Lisa M.20 Nov, 2025

This is the cutest set! Quality and classy yet still cute enough that toddlers look forward to using it. Very durable. Love Munchkin products!

Reddit Insights

5 threads · r/BabyLedWeaning, r/beyondthebump, r/daddit, r/moderatelygranolamoms

Reddit parents have mixed experiences with Munchkin straw cups, praising their ability to teach straw drinking but frequently complaining about leaks, difficulty sucking, and cleaning challenges.

mixed sentiment90% match

While some parents appreciate the cups for teaching straw drinking, the overwhelming complaints about leaks, hard-to-suck valves, and tricky assembly tilt the overall sentiment slightly negative.

Themes

Leakingnegative

Straw drinking difficultynegative

Cleaning and hygienenegative

Assembly issuesnegative

Transition from breastneutral

Use Cases

Teaching babies to drink from a straw
Transitioning from breastfeeding to cup

Watch Out For

mediumThe straw contains a valve that makes sucking very difficult for some babies, especially those still breastfeeding.

highLeaking is common if the lid isn't clicked into place or if there's temperature-induced pressure.

mediumReplacement parts are advertised but hard to find; cleaning the straw thoroughly is difficult and mold can develop.

Community Q&A

Why does my Munchkin straw cup leak?: Leaks often result from pressure buildup, incorrect assembly, or temperature differences. Ensure the lid clicks shut, the straw valve is fully seated, and release pressure if using cold liquids.
How can I make it easier for my baby to drink from the Munchkin straw cup?: You can cut the valve inside the straw to ease suction, but this may compromise spill-proofness. Alternatively, try different straw cups like Dr. Brown's.
How do I clean the Munchkin straw cup properly?: Use hot water and a pipe cleaner for the straw; the included brush is insufficient. Some parents replace straws periodically due to mold concerns.

Compared To

vs Dr. Brown's straw cup

Some parents find Dr. Brown's easier for babies to suck from and less leak-prone.

vs Mama Bear straw cup

One user found Mama Bear cups better than Munchkin after returning the latter.

vs Zak straw cup

Mentioned as an alternative in daddit thread.

Source Threads

Leaking issues and difficult suction with Munchkin straw cup
I find the water pushes out through the top of the straw. So after I fill the cup with water and close the lid, I always turn it upside down to get the water out of the straw before giving it to little one. I returned mine. they were so hard for my little one to drink from. we found the mama bear ones to be much better
r/BabyLedWeaningView thread →
Concerns about oral development and recommendation to avoid Munchkin straw cups
Feeding Littles now discourages use of Munchkin's straw cup because it's 'not ideal for oral development and can cause issues with speech and feeding skills later on.' They recommend straw cups that don't require biting to activate, like the Dr. Brown's straw cup.
r/beyondthebumpView thread →
Difficulty transitioning breastfed baby to Munchkin straw cup
Our LO got the hang of the Munchkin Straw Cups faster than the ezpz straw cup... I've been using the stage 1 playtex sipster straw cup... I think they have to bite and suck at same time? Anyways, I've found this playtex one you don't need to bite, just suck, and it is leak proof too.
r/BabyLedWeaningView thread →
Munchkin straw cups constantly overflowing due to pressure
They overflow constantly! One trick is to not tighten them all the way, leave them a tiny bit loose. Or release the pressure by unscrewing the lid slightly after filling. Some dads switched to Zak straw cups as an alternative.
r/dadditView thread →
Mold issues in Munchkin straw cups and cleaning difficulties
Munchkin straw cups are notorious for mold in the straw and valve. The little brush they give you doesn't cut it. We ended up buying a pipe cleaner set and replace them every few months.
r/moderatelygranolamomsView thread →