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The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. ppsu stage 1
What is PPSU, and why is it better than standard plastic?
PPSU is a premium material used in hospitals commonly used for medical devices. Unlike standard PP plastic, it has extreme heat resistance, resists scratches to prevent bacterial growth, and will never warp, stain, or leach microplastics.
My cup is leaking from the straw. How do I fix it?
Check if the cross-cut (+) valve is torn. If it is intact, simply pinch the air valve on the silicone base 3–4 times after closing the lid. This equalizes internal pressure (especially from warm drinks) and instantly stops backflow.
What is the difference between Stage 1 and Stage 2 straws?
They share the same leak-proof valve and flow rate. Stage 1 is ultra-soft for sensitive baby gums. Stage 2 uses firmer, high-density silicone built to withstand biting and chewing from older toddlers.
Is the cup dishwasher safe? Which rack should I use?
Yes, it is top-rack dishwasher safe. Keep all parts away from the bottom heating element to protect the materials.
How do I wash the silicone straw without tearing it?
Separate the straw nipple from the tube. Insert your straw brush gently, and twist it side-to-side to clean. Never scrub the brush up and down vertically, as this may puncture the cross-cut valve and cause leaks.
Grosmimi Bottle Collection
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Customer Reviews
4.6 out of 5 stars 89
4.4 out of 5 stars 3,708
4.3 out of 5 stars 535
4.4 out of 5 stars 144
3.9 out of 5 stars 27
4.6 out of 5 stars 146
4.6 out of 5 stars 536
Price
$18.40$18.40
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$28.70$28.70
$46.80$46.80
$49.80$49.80
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$22.00$22.00
Body material
PPSU
PPSU
PPSU
Stainless steel
Stainless steel
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–
Tip type
Food-grade silicone
Food-grade silicone
Food-grade silicone
Food-grade silicone
Food-grade silicone
Food-grade silicone
Food-grade silicone
Best for
Newborn feeding
First sips
Confident drinking
Confident drinking
Big-kid, on the go
Refresh Stage 1 cup
Refresh Stage 2 cup
Suitable age
0M+
6M+
12M+
12M+
24M+
6M+
12M+
Spill-proof
✔
✔
✔
✔
✔
✔
✔
Size
2 sizes (6oz/10oz)
2 sizes (6oz/10oz)
2 sizes (6oz/10oz)
2 sizes (6oz/10oz)
1 size (10oz)
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SPILL-PROOF FROM FIRST SIP — NO MESS, NO STRESS: Designed for babies beginning their cup journey at 6+ months. The spill-proof +Cut straw and flip-top lid help prevent leaks when your little one tips, drops, or carries the cup. Built for the messy moments of learning to drink—without the mess.
SAFE FROM THE INSIDE OUT — PREMIUM PPSU + SILICONE: Every part that touches your baby’s drink is made from premium PPSU or food-grade silicone. No metal or microplastics in the drinking path—just thoughtfully selected materials designed for everyday feeding and drinking.
EASY TO CLEAN — TOP-RACK DISHWASHER, MICROWAVE & STERILIZER SAFE: All parts fully disassemble for thorough cleaning. Top-rack dishwasher safe, microwave safe, and safe for boiling or steam sterilization. Durable PPSU and silicone are designed to withstand repeated cleaning and daily use.
TWO STRAW STAGES — SAME SEAL, DIFFERENT BITE: Both stages share the same leak-proof cross-cut straw and flow rate — only the firmness differs. Stage 1 (6M+) is soft for new gums and first sips; Stage 2 (12M+) is firmer to resist biting. Start with Stage 1, upgrade when chewing begins.
360° ROTATING HANDLES — EASY GRIP, EVERY LAST DROP: Soft handles rotate a full 360° to follow your baby’s hands — no awkward wrist twisting. They tilt with the cup, so your little one can drink down to the very last drop.
13 reviews for GROSMIMI PPSU Baby Straw Cup Stage 1, 6M+, Spill-Proof, 10oz (Beige) | Babies & Toddlers 6+ Months | Removable Rotating Handles | Silicone Straw | Heat-Resistant | BPA-Free Sippy Cup | 300ml
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