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.

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GROSMIMI PPSU Baby Straw Cup Stage 1, 6M+, Spill-Proof, 6oz (Beige)

GROSMIMI PPSU Baby Straw Cup Stage 1, 6M+, Spill-Proof, 6oz (Beige)

Product ID: 186000262

Details

Brand
GROSMIMI
Capacity
6 fluid ounces
Color
Beige
Material
(PPSU)
Special Feature
Dishwasher

🍼6oz spill-proof capacity

🔄360° rotating soft handles

♻️Dishwasher, microwave & sterilizer safe

14.88 OMR

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Description

🍼 Sip smart, spill less — the baby cup that grows with your little one!

EFFORTLESS CLEANING - Fully disassembles for top-rack dishwasher, microwave, and sterilizer compatibility—hygiene made easy.
MESS FREE FIRST SIPS - Spill-proof +Cut straw and flip-top lid keep every drop in place, perfect for messy beginners.
ADAPTIVE STRAW STAGES - Soft Stage 1 straw for gentle gums, ready to upgrade as your baby’s bite evolves.
PREMIUM SAFE MATERIALS - Crafted from BPA-free PPSU and food-grade silicone—no microplastics, no metal, just pure safety.
ERGONOMIC 360 HANDLES - Rotating handles follow your baby’s grip naturally, ensuring comfort and zero wrist strain.

The GROSMIMI PPSU Baby Straw Cup Stage 1 is a 6oz spill-proof sippy cup designed for babies 6 months and older. Made from premium BPA-free PPSU and food-grade silicone, it features a leak-proof +Cut straw, flip-top lid, and 360° rotating soft handles for easy grip. Fully dishwasher, microwave, and sterilizer safe, this durable cup supports hygienic daily use and adapts with your baby’s development through its two-stage straw system.

Specifications

ASIN	B08398KZ2B
Age Range Description	Baby, Toddler
Best Sellers Rank	#764 in Baby ( See Top 100 in Baby ) #25 in Toddler Cups
Brand Name	GROSMIMI
Capacity	6 fluid ounces
Color	Beige
Customer Reviews	4.4 4.4 out of 5 stars (3,735)
Finish Types	Glossy
Included Components	Cups
Item Dimensions W x H	3.9"W x 5.7"H
Item Weight	97 g
Manufacturer Part Number	1001-CB
Material Features	Insulated
Material Type	Polyphenylsulfone (PPSU)
Material Type Free	BPA Free
Model Number	1001-CB
Number of Items	6
Occasion	Everyday
Other Special Features of the Product	Dishwasher Safe, Spill Proof
Pattern	Solid
Product Care Instructions	Hand Wash Only, Microwave Safe
Product Style	Tableware
Recommended Uses For Product	Home
Reusability	Reusable
Shape	Round
Size	1 Count (Pack of 1)
Theme	Baby
Unit Count	1 Count

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14.88 OMR

Duties & taxes included

In stock

Sold byAmazon OMANDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to OMAN.

Secure transaction

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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