We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Sippy Cup?

Tricia Christensen
By
Updated May 17, 2024
Our promise to you
WiseGEEK is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGEEK, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

The sippy cup refers to cups with a plastic lid and spout, used to help train babies to drink from cups. Richard Belanger, who sold his design to Playtex, created one of the earliest designs of the sippy cup®. Variants of the design are still marketed as the Sipster®.

It can be very challenging for babies under the age of one to drink from a regular cup. Controlling tipping the cup up to get the drink takes fine motor control that many babies lack. Drinking from a regular cup can lead to choking and spluttering on liquids when too much liquid is taken in. Further, babies notoriously spill their drinks and may even enjoy overturning a cup to see its contents flow out. This is natural baby behavior that is somewhat counteracted by using a sipper cup.

To minimize spilling, the cup lid may have a spout that requires some suction from the baby in order to release the liquids. Some brands use a plastic or rubber valve that fits into the spout to keep it leak-proof. This means that if the cup is overturned, liquid won’t necessarily leak from the cup. The lids of the cup designed for young babies, perhaps at 5-8 months old, also may mimic a bottle or breast nipple in shape. Some feel this design helps transition the baby from breast or bottle-feeding.

Once the baby has gotten the hang of using a cup with a nipple type spout, a more advanced spout can be used. Some parents never use the nipple spout on sippy cups but merely introduce a small sipper cup with a semi-prismatic shaped spout. Another feature sometimes included in the sippy cup is a rounded and slightly weighted bottom. Playtex® manufactures these as tumble mates, or they may be more generically called Tommy Tippy cups. If the cup is knocked over, it springs back up.

As children get a little older, parents still may want to minimize large spills using simple plastic cups with a lid and spout. These don't require suction but still disperse liquid more slowly than would a regular cup. Spilling at a slower rate allows parents to quickly catch small spills.

When to introduce the sippy cup is a debatable matter. Some parents start when babies are about four or five months old, and other parents wait until a baby is 8-10 months old prior to trying a sipper cup. Earliest liquids, especially if the baby is under a year old and still nursing or taking formula should simply be water, formula or breastmilk. When baby gets mobile, don’t allow the baby to travel with a sipper cup or a bottle. Spills can occur, and baby can accidentally fall on the cup and cut the mouth.

Use care when washing the lids. Any parent who has used a sippy cup can relate tales of how the lid melted in the dishwasher. Try to keep lids on the top rack of the dishwasher, and if necessary, wedge them between two cups to prevent them from falling below the lower rack and onto the heating element.

WiseGEEK is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Tricia Christensen
By Tricia Christensen , Writer
With a Literature degree from Sonoma State University and years of experience as a WiseGEEK contributor, Tricia Christensen is based in Northern California and brings a wealth of knowledge and passion to her writing. Her wide-ranging interests include reading, writing, medicine, art, film, history, politics, ethics, and religion, all of which she incorporates into her informative articles. Tricia is currently working on her first novel.

Discussion Comments

By lasaxman — On May 27, 2008

I googled melted sippy cup lids and came across this article. I had this happen tonight, and was wondering if this is toxic? Thanks

Tricia Christensen

Tricia Christensen

Writer

With a Literature degree from Sonoma State University and years of experience as a WiseGEEK contributor, Tricia...
Read more
WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.