sippy of steel
Stainless Steel Sippy Cup

Sippy of Steel by Thinkbaby

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Up to 95% of the baby bottles on the market are made of polycarbonate which contains BPA. As little ones systems are still in a state of development they have very little defense against foreign chemicals therefore, all of Thinkbaby bottles and cups are free of – Bisphenol-A (BPA), phthalates, nitrosamines, lead, PVC, PET, and biologically harmful chemicals.

Our stainless steel sippy cup has become one of our most popular items. Most of the sippy cups on the market have hard plastic spouts or rubber spouts. We built the Thinkbaby Sippy Cups with soft silicone spouts. This makes for easy transition from baby bottles to sippy cups. This is a struggle that most parents face in moving to the next stage of feeding. With the Thinkbaby Sippy Cup, the little one is already used to the feeling of silicone so making the transition is quite simple. The base of the bottle is made of medical grade (18/8) stainless steel and has markings on the inside and outside to indicate volume.

Product Description

Why it’s Awesome

The spouts also feature a cross-cut design, so no spillage when held upside down (which obviously happens quite often).

No extra little pieces to lose or clean.

Why It’s Eco

Free of Bisphenol-A (BPA), phthalates, nitrosamines, lead, PVC, PET, and biologically harmful chemicals.


Perfect for 9 to 36 months.

Care Instructions:

Thinkbaby Sippy Cups are dishwasher safe (top rack recommended). The markings are embossed into the metal so they will not come off. The logo is laser etched into the material.

When washing the Sippy Cup in the dishwasher, use a detergent that is free of chlorine. If hand-washing, the American Pediatrics Association suggests using warm soapy water, but only if you live in an area with treated water systems.

Before first use:

We recommend sterilizing the Sippy Cup in boiling water for 2 to 5 minutes before first use. We do not recommend utilizing sterilizers, as we cannot guarantee that the ones on the market were made with safe materials. The Sippy of Steel is NOT microwave safe. In fact, we strongly suggest that parents do away with the use of microwaves for all items and products destined for your little one.

Casey is a wahm of two little girls, Ellie and Zoe. She’s the owner of Ecocentric Mom and is passionate about helping fellow mamas live a more balanced, healthy lifestyle by discovering natural products and mind/body wellness. In her free time, Casey loves running marathons and making sandcastles with Ellie at the beach near her home in East Hampton.


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