Behind the design of Zip Top containers

The goal at Zip Top is to help reduce plastic waste by offering easier to use reusable containers. Simply put, Zip Top is on a mission to be better for you and better for the planet. 

In 2017, that dream became reality when Rebecca Finell, a serial entrepreneur, launched the Zip Top brand. She created a clean, thoughtful design that would make it easy for people to stop using single-use plastics. Her Zip Top containers are like nothing else in the world as they stand up, stay open and zip shut! The result was a game changing product that will help millions of people to live a more eco-friendly life! 

Zip Top container’s patented design is made with a one-piece construction that makes it extremely durable - microwave, dishwasher and freezer safe. Zip Top’s 100% platinum silicone construction contains no BPA, lead, PVC or phthalates. This means there is no seam to attract bacteria or tear from use! Taking food storage to the next level, Zip Top containers are helping make the move to reusable a no-brainer.

In 2020, Finell again pushed to change another industry when launching the first reusable pure silicone breast milk storage bag. With a long history in the baby industry - Founder of Boon - she knew there were better options for nursing mothers than single-use plastic disposable milk bags. 

The thoughtful details put into the design have been recognized across the globe - Zip Top has already won an International Design Excellence Award, Gold German Design Award, European Product Design Award and was named a Good Housekeeping Editor’s Pick at the 2019 International Home + Housewares Show.


Are Zip Top containers made from Food Grade Silicone?

Yes. In fact, Zip Top containers are made from Platinum Grade Silicone, the highest-quality Food Grade Silicone available. You can rest easy knowing that Zip Top containers do not contain fillers that could leach into your food. All Zip Top silicone is made in the United States where we can ensure its purity and quality.

What is platinum silicone?

Zip Top containers are made from platinum-cured food-grade silicone ("platinum silicone" for short), the highest grade available. It is food safe, microwave safe, freezer safe, and dishwasher safe.

Why is Zip Top better than plastic for your health? 

Traditional plastic containers are petroleum based and can contain harmful chemicals. Because Zip Top containers are made from platinum silicone, it is free of BPA, lead, phthalates and PVC. It is also hypoallergenic.

Are Zip Top containers recyclable? 

Yes, at specific silicone recyclers.  All of our packaging is also recyclable.

Where are Zip Top containers made?

All Zip Top containers (including the silicone) and packaging are proudly Made in the United States of America. 

Using Zip Top Containers:

Is Zip Top dishwasher safe?

Yes! They were designed for the dishwasher, so all Zip Top containers have large rounded corners for easy cleaning. Most importantly, all Zip Top containers stay open for better cleaning and drying! They are top or bottom rack safe.

Can I microwave in Zip Top containers?

Yes! Zip Top containers are completely microwave safe. And unlike plastics, they don't contain BPA, lead, phthalates or PVC that can leach into your food when heated. Zip Top containers won't warp or melt in the microwave. 

Remember to open a corner before microwaving and be careful when contents are hot.

Is Zip Top freezer safe?

Yes, Zip Top containers are completely freezer safe. Our thick silicone will not get brittle from freezing it frequently. Unlike plastic baggies, Zip Top containers are a one-piece design that won't tear or burst in the freezer.

Will Zip Top stain?

Most foods will not stain your Zip Top containers. There are a few foods, however, which can stain pure silicone such as tomato sauce, curries, watermelon, cooked carrots and other red/orange foods.

Try rubbing with a baking soda and water mixture and let sit for 4 hours. Rinse well and then wash as usual.

Will Zip Top containers retain odors?

Food grade silicone is nonporous which inhibits bacterial growth and odors. However, some foods or dishwasher detergents can retain an odor.

For dishwasher detergents, It is best to choose dishwasher soap or detergents that do not contain essential oils, antibacterial agents or moisturizers. Gentler, more natural dishwasher soap/detergents work best to clean Zip Top containers, especially ones that are scent free. 

For food odors, try rubbing with a baking soda and water mixture and let sit for 4 hours. Rinse well and then wash as usual.

Are Zip Top containers air-tight?

Zip Top containers seal differently than traditional plastic zippered baggies which have tiny, hard, flat plastic zippers. Zip Top containers have large, soft, rounded zippers that flex. Because of this, your containers may, at times, leak a small amount of air if squeezed. In addition, once sealed, because of the pull of the wide, rounded opening, air will sometimes want to seep back in. If so, the small amount of air in your Zip Top will act like air trapped in a typical lidded container.

Are Zip Top containers leak-proof? 

Zip Top containers are designed to hold liquids upright in a kitchen environment. This is why every container says on the back to “keep liquids upright" (which is simple since all Zip Top containers stand up due to their sturdy flat bases).  When kept upright, Zip Top containers are completely leak proof.  Zip Top containers were never designed, for instance, to fill with water and hold upside down or for taking liquids on the go.

Can I sous vide in Zip Top containers?

We do not recommend completely submerging Zip Top containers in water for sous vide or other applications. Due to the flexible zipper seal, some water may, at times, seep into a fully submerged bag. However, Zip Top containers are great for steaming and cooking where the zipper seal may fully or partially be left open while heating.