Grosmimi PPSU Straw Cup with Flip Top - 10oz (12 Months+) Stage 2 Straw
Free shipping on orders $75+ · Ships in 1-3 business days
Choose your baby's stage· One cup that grows with your baby
Material: PPSU
Size & Type: 10oz & Flip Top & Stage 2 Straw
Color: Dinosaur
Description
New Collaboration Release: Knotted × Grosmimi — Cream Bunny, Smile, and Sugar Bear designs now available.
This PPSU straw cup with flip-top lid (One Touch Cap), has a lock feature, and is much easier for the baby to use with one hand. The cup comes with Stage 2 Straw kit.
Highly Functional: Grosmimi bottles are made of PPSU, a FDA compliant material commonly used for medical devices requiring repeated steam sterilization. It is incredibly durable, high temperature resistant (-4°F to 392°F) and BPA Free
Leak-Free: ‘+ CUT’ prevents any leak from the bottle, 2-way of using allows baby to drink no matter sitting down (with the tube) or lying down (without the tube)
Easy to Clean: It is so easy to separate all the parts for hygienic cleaning and reassemble them in a few seconds.
The PPSU straw cup is suited for 6 Month+
Specs
- Capacity: 10oz (300ml)
- Dimensions: 18.4cm H x 10.0cm W x 6.9cm D
- Weight: 126g
Materials
- Bottle is made of PPSU
- Lid and handle are made of BPA-free plastic
- Straw is made of platinum silicone
Care Guide
RECOMMENDATIONS & WARNINGS:
- Always use this product with adult supervision
- Never use straw teats as a soother
- Continuous and prolonged sucking of fluids will cause tooth decay
- Always check food temperature before feeding
- Inspect before each use and pull the feeding teat in all directions. Throw away at the first signs of damage or weakness
- Do NOT leave in disinfectant for longer than recommended, as this may weaken the teat
- Before first use place a feeding teat in boiling water for 30 seconds. This is to ensure hygiene
- Please wash before using
- Please use a straw brush when washing the straw and teat
- Avoid direct sunlight or fire
- Please replace the silicone parts every 2-3 months for hygienic issues
- Take extra care when microwave heating. Always stir heated food to ensure even heat distribution and test the temperature before serving
- Straws are not suitable for a child under 6 months
- Please read the information on the leaflet enclosed before use
Leak-proof sips, happy moments.
Korea’s No.1 Toddler Straw Cup
946,000+
Cups sold annually
30+ Countries
Loved by moms worldwide
Patented tech
On the straw-nipple design
CPSIA Compliant
Tested by a CPSC-verified lab
Leak-Proof Design
Squeeze it. Pinch it. It won't leak.
The + cut straw tip seals under pressure. Toss it in the diaper bag — no spills, no mess.
✓ + Cut seals under pressure. No extra valves.Durable PPSU
Babies drop things. This cup handles it.
FDA compliant PPSU is incredibly durable — used for medical devices that get sterilized over and over.
✓ Incredibly durable FDA-compliant PPSUOne Touch Cap
Open with one hand. While holding baby with the other.
Thumb-press flip cap opens instantly. Steel-free, anti-dust design keeps the straw clean between sips.
✓ One Touch Cap — steel-free, anti-dustSealed in Motion
Shake it. Swing it. Still sealed.
Toddlers don't just drink — they shake, throw, and swing. The + cut straw stays sealed through all of it.
✓ + Cut stays sealed during motion
Selection Guide
Start small, then size up.
The 200ml flip top is lighter and easier for toddlers to carry. The 300ml is ideal for longer outings or when your child drinks more volume.
200ml
Compact, lighter, easier to hold
300ml
More volume for bigger appetites
← This productWhen babies start teething, they begin to chew on the straw teat. For babies over 12 months who tend to bite, a firmer straw teat is available separately.
The Material
Why PPSU matters.
Not all baby bottle plastics are the same. PPSU is an FDA-compliant thermoplastic commonly used for medical devices that require repeated high-temperature steam sterilization — the same class of material trusted for reusable hospital equipment. That stability is why Grosmimi builds every cup and bottle from it.
FDA
Compliant — used for medical devices requiring steam sterilization
BPA Free
Zero Bisphenol A in the material
392°F
Heat resistance — safe from -4°F to 392°F
Peer-reviewed research has measured microplastic release from baby bottles under heat. Findings show polypropylene (PP) bottles release substantially more particles than PPSU and other advanced materials. The directional finding that PPSU is more stable than PP under heat is consistent across studies.
Grows With Your Baby
One system, every stage.
Grosmimi's full product line covers every stage — from bottle to straw cup to tumbler. Each product is compatible with the same accessories, so you invest in a system, not throwaway cups.
What's Included
Everything in the box
Includes Stage 2 straw teat. Additional straw teats and accessories are available separately.
Cup Body
PPSU or Stainless Steel
Flip Top Cap
One-touch open
Silicone Straw Teat
Included
Silicone Straw Tube
Replaceable
Weighted Straw Kit
Any-angle drinking
Care & Sterilization
How to sterilize each part
| Method | Bottle (PPSU) | Cap (PP) | Straw/Teat (Silicone) | Weighted Bead |
|---|---|---|---|---|
| Hot Water | ✓ | ✓ | ✓ | ✓ |
| UV Sterilizer | ✓ | ✓ | ✗ | ✓ |
| Dishwasher | ✓ | ✓ | ✗ | ✓ |
| Steam | ✓ | ✓ | ✓ | ✓ |
| Microwave | ✓ | ✗ | ✗ | ✗ |
Tips: Replace silicone parts every 2-3 months, or immediately if torn. Hot water sterilization within 5 minutes. Always disassemble all parts before cleaning.
The Brand
From Grosmimi. Made in Korea.
Grosmimi crafts PPSU feeding products for babies — from bottles to straw cups to tumblers. Made in Korea, trusted by parents worldwide.
Korean Brand Consumer Evaluation 2023
Infant Products Winner — Feeding Bottle & Straw Cup category.
One of the Top 5 Best-Selling Toddler Straw Cup Brands on Amazon US
#1 Best-Selling PPSU Straw Cup
Over 8,000 reviews ★ 4.5 out of 5.0 rating
Real reviews
Real parents, real reviews.
Creators using this with their own kids.
Replacement
Policies
Shipping & Returns
Shipping
- Free shipping on orders over $75
- Standard shipping: $5.99
- Ships within 1-3 business days
- Delivery: 5-10 business days
Returns
- 30-day return policy
- Items must be unused and unopened
- Contact hello@onzenna.com to start
- Full refund to original payment
FAQ
Frequently Asked Questions
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Reviews
What Parents Are Saying
Based on 16 reviews
would recommend
this product
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Sign In to Write a Review16 reviews
Lauren
Handles dont stay in one spot, just keep spinning. Quality is ok.
BriAnn B.
SPILL PROOF
Finally a spill proof, leak proof cup! I have put it through all the tests. Warm milk, cold milk after being in fridge, dropping it, shaking it! It has not leaked through any of this. I could not be more impressed with this cup!
Iris P.
Straw cup
The cup is pretty and I love how soft the straw is. They are easy to use and my baby would drink milk out of it. The handle makes it easier for her to hold especially with the cold milk
Lee M.
Happy face
My son loves these. He thinks it's so cool to open them himself.
Easton G.
little one loving it
perfect size for my 1 year old
