Yumbox is a kid-friendly, bento-style lunch container designed for kids and adults. Yumbox is made with high quality, super durable, BPA-free, food-safe materials. Read our Frequently Asked Questions (FAQs) below to learn more or contact us with questions.

Is Yumbox leakproof?

Yes. Yumbox is a leakproof container. Yumbox’s silicone lid engages with the tray to create a tight seal keeping food contents in place, including wet foods like yogurt and applesauce (not water). Foods will not leak between compartments or outside of the box.

How do I pack wet foods?

Yumbox is designed to hold wet foods but not liquids. To ensure that food stays in place and does not leak to other compartments, follow these 4 Easy Steps:
1) Do not overfill compartments (an overfilled compartment could cause another to leak as well);
2) Remove any excess liquid from canned fruit, applesauce and yogurts;
3) Keep contents cool by adding an ice pack to your lunch tote;
4) When closing Yumbox, press down on the lid with the palm of your hand and snap latch to closed position to create the best seal.
Do not pack yogurt drinks, soups or runny/watery dressings.
Do pack foods with the consistency of ranch dressing, ketchup, chunky salsas, hummus, yogurt, and veggie dips. These are all great options. Some oily vinaigrettes may leak out of the dip well. One trick that can help keep vinaigrettes in place is to dress the salad and top it with a few croutons. The croutons will absorb excess oil/liquid and keep the vinaigrette from seeping into a neighboring compartment. If you are not sure if your food choice is too liquidy to pack, we suggest that you conduct a quick test before sending your child to school with that food. Simply add the test food to a compartment, close Yumbox properly and give it a good shake (or leave it on its side for 10 min.). Set Yumbox back to normal position and open to see the results.

Is Yumbox dishwasher safe?

Yes, Yumbox is dishwasher safe. Top rack only. We highly recommend hand washing the outer shell and/or removing it before the heat dry cycle. Yumbox has been tested at temperature 65C/149F, 110 min. cycle. Yumbox is made with ABS (exterior box), Tritan (tray), and silicone (seal). Yumbox is designed with rounded edges and smooth surfaces to make hand washing easy.

How do I carry Yumbox?

Yumbox is compact and fits neatly in standard size lunch totes. Please visit us on Pinterest for lunch tote ideas.

Is Yumbox food safe?

Yes. All materials are food-safe, BPA-Free, Phthalates-free and are CPSIA and FDA compliant.

Is Yumbox microwavable?

We advise that everyone use their own judgement when deciding to microwave any plastics.
If you own Yumbox with an acrylic tray (purchased before May 1, 2013), it is not microwaveable. If you purchased Yumbox after May 1, 2013, the Tritan tray only (not the exterior box) is microwave-safe at standard temperatures of 100 °C (212 °F).

Is Yumbox thermal?

No. Yumbox is not made with thermal materials. If adding food like yogurt, which should be kept cold, we recommend packing Yumbox in a thermal tote with an ice pack to keep contents cool.

Does Yumbox come with utensils or drink cup?

Yumbox is not sold with accessories at this time. However, we will be offering accompanying products in the future. Please visit us on Pinterest for accessory ideas.

How big is Yumbox?

Yumbox is perfect for little kids! Yumbox is compact and can be carried in standard size totes. It also fits neatly on the lunch table. Its dimensions in a closed position are approximately 8.5 x 6.5 x 1.8 inches and weighs 1 lbs 1.5 oz.

Is Yumbox’s tray removable?

Yes. Yumbox’s tray fits snuggly in the bottom half of the exterior box. It can be removed easily for cleaning, packing or for at home use. In fact, kids love eating their meals out of Yumbox’s tray at home too! The first time you open Yumbox, you may find that the tray is slightly difficult to remove. After initial removal, it will return to its comfortably snug fit.

Are Yumbox’s trays interchangeable?

You may use all Yumbox 6-compartments trays with the outer box that has a matching 6-compartment seal. Currently in Pomme Green, Framboise Pink, Figue Purple and Myrtille Blue.

You may use all Yumbox Panino 4-compartment trays with the outer box that has a matching 4-compartment seal. Currently in Tutti Frutti Blue, Anguria Pink and Pomodoro Red.

While 6-compartment trays may fit in 4-compartment outer boxes, and vise versa, they will not create a seal and do not have a perfect fit to prevent leaking or spills.

Is Yumbox’s lid removable?

This question applies to Yumboxes with a two-hinge design. We recommend NOT separating the lid from the base in order to avoid damaging the hinges. Yumbox is compact (even open) and fits in a dishwasher as is.

Can I pack a Yumbox lunch the night before and store it in the fridge?

Yes. Yumbox acts as an excellent storage container. The seal keeps foods fresh for days in the fridge.

What portions does Yumbox accommodate?

Yumbox now has two designs to make packing lunch for everyone easy!

Yumbox's original 6-compartment food tray, is perfect for toddlers through age 8 who like variety. It accommodates five 1/2 cup portions of the five main food groups plus one dip/treat well. The illustrated trays reinforce healthy balanced meal packing.

New Yumbox Panino 4-compartment food tray is sandwich-friendly. This is a great option for kids and adults of all ages that prefer sandwich and salad style lunches. It has one large sandwich size section with two smaller 1/2 cup sides plus a 1 oz dip/treat well.

Both designs are compact, leakproof and kid-friendly.

For healthy lunch packing ideas visit us on Facebook.

Does Yumbox ship to my country?

We only ship to the US directly. However, we now have distribution in Canada, the UK and Australia/New Zealand. Please see our Retailer List for more information. If you are located outside of these countries, please Sign-up to be notified when Yumbox becomes available to you. You may also Contact us.

Where can I buy Yumbox?

Yumbox is currently available via our website, Amazon.com and through select retailers (please see our Retailer List). If you would like your local retailer to stock Yumbox, please ask them to contact us for wholesale information.

I am a Retailer and would like to learn more about Yumbox.

We would love to hear from you! For larger retail orders, Yumbox colors and tray artwork can be customized. Please Contact us at retail@yumboxlunch.com. For International Retailers, please find contact information on our Retailers List which also includes Distributors for Australia, New Zealand and the UK.

I am a Distributor and would like to secure Yumbox distribution rights.

We would be happy to speak with you. Please Contact us at retail@yumboxlunch.com.