10 Best Lunchboxes to Keep Food Safe and Fresh

The 10 Best Lunchboxes for Kids and Adults That Will Keep Food Fresh for Hours

As a teacher and a mom of two, I’ve been packing school lunches nearly every day for over 12 years. I rely on them to keep my and my girls’ food fresh and safe for hours, especially on the days I pack them early in the morning and need them to stay cool or warm until noon. Unfortunately, not all lunchboxes keep food at a safe temperature that long, which can result in potential illnesses.

“Don’t let any perishable foods sit in the ‘danger zone’ for too long,” says Kevin Gendreau, MD, a double board-certified obesity and family medicine physician at Signature Healthcare in Massachusetts. The danger zone is when food is left out for more than two hours at temperatures between 40 and 140 degrees F. During this time, bacteria multiply rapidly, potentially causing food poisoning.

The best lunchboxes feature insulation to keep food warm or cool, a capacity big enough to fit all the essentials, and surfaces made of an easy-to-clean material. To find the best ones, we asked our writers and editors for their top recommendations, then we determined whether our picks are best for commuting, summer camp, work, and more. We also spoke with a family physician and a registered dietitian to learn more about what to look for in lunchboxes and how to ensure that food stays at a safe temperature for hours. Our list includes options we bought and used for years, as well as lunchboxes we tested and would recommend to our loved ones (and you!) without hesitation.

Our Top Picks for the Best Lunchboxes

personal cooler

Best for Commuters

RTIC 8-Quart Road Trip Personal Cooler

Pros

  • Large capacity
  • Durable, easy-to-clean material
  • Keeps food cold for hours

Cons

  • Locking handle feature is tricky at first


Key Specs

  • Capacity: 8 quarts
  • Material: Plastic 
  • Ease of cleaning: Hand-wash
If you commute to work, a lunchbox with high-quality insulation isn’t optional — it’s a necessity. We love how the RTIC Road Trip Personal Cooler keeps food and drinks cold from morning to lunch (and even longer). That kind of insulation, along with an ice pack, is important for keeping perishable foods at or below 40 degrees F, which will slow bacterial growth and reduce the risk of foodborne illnesses.

“I tested this lunch cooler about two years ago, and it was awesome!” says editor Katrina Cossey. “It’s a great size if you work long hours and need something to keep your food cool all day.” The thick insulated walls maintain cold temperatures even in the sun, and the sturdy design is durable enough for regular use.

Its portability makes it the best option for commuters, whether traveling by train or in a car to work or class. The handle doubles as a lock: Lift it to secure the cooler, and fold it down to open it. It’s a handy feature, but it can occasionally be finicky if the handle isn’t fully up or fully down. Once you get used to it, however, it’s easy to operate. 

kids bento box

Best Bento Box for Kids

OmieBox Bento Box

Pros

  • Multiple compartments
  • Built-in insulated thermos
  • Leakproof design

Cons

  • No internal ice pack

Key Specs

  • Capacity: 8.5 ounces
  • Material: Rubber, stainless steel
  • Ease of cleaning: Hand-wash

Packing school lunches can get old fast, especially when you’re stuck choosing between only hot or cold food — but that’s where the OmieBox saves the day. It has a built-in insulated thermos and multiple compartments that let you send warm and cold food together, all in one box. “Pasta stays warm in the thermos, and his food stays well separated,” shares editorial director Simone Scully, whose son uses this bento box. As parents who have experienced leaky lunches many times, we’re thankful that this one keeps everything contained.

While we wish it were dishwasher safe, it’s a solid lunchbox for kids. “It’s easy to use, can be carried on its own as a lunchbox or fit into a larger lunchbox (which is what my daughter likes to do), and it keeps food hot and cold for hours,” says editor Ashley Ziegler, whose kiddo also uses this lunchbox. Plus, it comes in fun color combinations that our kids loved.

food jar for toddler

Best Insulated Food Jar for Kids

b.box Insulated Food Jar

Pros

  • Removable handles
  • Retains heat well
  • Dishwasher safe 

Cons

  • Wide design

Key Specs

  • Capacity: 11 ounces
  • Material: Stainless steel
  • Ease of cleaning: Dishwasher-safe

Some insulated food jars we’ve tried either lose heat too quickly or take up too much room in a lunchbox, but this b.box pick provides a great balance. It offers reliable insulation and has a nice design that makes it stand out from the rest. The lid features handles and a bumper, making it easier for kids to open, while keeping the jar protected in backpacks or lunch bags.

“My favorite thing about this food jar is its 11-ounce size — it’s just right for small hands and doesn’t take up too much space,” says Cossey, whose 6-year-old uses it twice a week. We found taco meat and spaghetti stayed warm from morning drop-off until lunchtime. Just be sure to keep the lid on until it’s time for lunch, in order to retain heat and keep food at a safe temperature.

The jar is dishwasher-safe, and we love that the stainless steel doesn’t hold smells either. While the design is wider than other insulated food jars for kids, we still recommend it because it retains heat well, fits easily in a lunchbox, and helps kids feel independent at school.

food jar for adult

Best Insulated Food Jar for Adults

Built Insulated Food Jar

Pros

  • Wide-mouth opening
  • Soft rubber grip on exterior
  • Leakproof

Cons

  • Lid can be tough to open

Key Specs

  • Capacity: 16 ounces
  • Material: Stainless steel
  • Ease of cleaning: Hand-wash

The Built Insulated Food Jar is our top pick for adults due to its large 16-ounce capacity and ability to hold heat throughout the day. Plus, it’s dishwasher-safe, which is practically a requirement for busy adults.

We love how well it keeps food warm or cold for hours (yes, it does both). Our kiddos have also used this food jar when theirs were dirty. Just note that it might be harder for smaller kids to open. That said, as long as we we didn’t put the lid on too tightly, we had no issues. There’s a soft rubber grip on the exterior, which makes it easier to hold the jar while twisting off the lid. It’s also fully leakproof; we’ve never had our lunches leak from the jar while into our bags. And the wide-mouth opening is a useful feature that leaves plenty of room to maneuver a fork or spoon for just the right bite.

lunchbox

Best for Summer Camp

Bentgo Kids Stainless Steel

Pros

  • Multiple compartments
  • Stainless steel is durable
  • Fun prints

Cons

  • Material is heavier than plastic
  • Latches may be difficult for some kids 

Key Specs

  • Capacity: 40 ounces
  • Material: Stainless steel
  • Ease of cleaning: Dishwasher-safe

If you want a lunchbox container that will last through summer camp and beyond, look no further than the Bentgo Kids Stainless Steel Lunch Box. The material is durable, making it suitable for everything from school lunch tables to picnic tables at the zoo. Kids love the playful designs, like unicorns or dinosaurs, which easily make lunchtime more exciting. Its durability, organization, and style are why we chose it as a top pick for summer camp lunchboxes.

The three compartments and a removable silicone container allow you to pack various items, such as a sandwich, fruit, and nuts. “The lunchbox doesn’t have any internal cooling features or ice, like some of the others I tried, but it does stay pretty cool if you pack it in a lunch bag with some ice packs,” says Scully. Be sure to include at least two ice packs to keep perishable foods at a safe temperature until lunchtime.

adult lunch box

Best for Work

Easyfun Lunch Bag for Adults

Pros

  • Stylish design, available in multiple colors
  • Keeps food cold for hours with ice packs
  • Large capacity holds containers and more

Cons

  • Open side pockets
  • Slightly bulky

Key Specs

  • Capacity: 11 liters
  • Material: Polyester
  • Ease of cleaning: Hand-wash

I’ve been using this insulated lunch bag nearly every day for the last two years, and it’s quickly become my go-to choice for work lunches. It’s the perfect size, and I love that it keeps my food, like a ham sandwich, cold as long as I add ice packs. I also like how cute it looks, which makes carrying it a little more fun than some other adult lunchboxes. Cleaning is simple — I can just wipe it down on the inside for a quick clean.

Packing meals is a breeze, with a main compartment that offers ample room for my favorite foods, plus side pockets for other needs like silverware or a piece of gum. I can quickly toss in several items, zip it up, and head out the door each morning. The design makes it easy to grab and go, which saves time when things get hectic.

There are a few things I wish were different. The side pockets don’t have zippers, so smaller items can slip out if I’m not careful. It’s also a bit bulky, which can make it tricky to toss into my teacher bag when my hands are already full. Despite that, it’s been super reliable, makes packing lunch less stressful, and actually keeps my food cold (which helps prevent foodborne illness).


bentgo box

Best for Little Kids

Bentgo Kids Lunch Box

Pros

  • Five compartments of various sizes
  • Lightweight design
  • Dishwasher-safe

Cons

  • Compartments are too small for older kids
  • Minimal insulation without ice packs

Key Specs

  • Capacity: 19.2 ounces
  • Material: Plastic 
  • Ease of cleaning: Dishwasher-safe
The Bentgo Kids Lunch Box features a simple layout and compact design to help everyone from preschoolers to first graders feel confident opening their own food. During these ages, children are developing fine motor skills, like the ability to serve themselves food or pour water (with adult supervision!), which they can use to open their lunchbox independently at the lunch table.

Overall, an age-appropriate lunchbox really matters.

“What I like most is that it’s very easy to clean,” says Sabrina Rojas Weiss, an editor and parent whose 12-year-old son handpicked this lunchbox. “Most of the time, you just need to wash the insert, but you should definitely wash the rest of it regularly too.” While the compartments are likely too small for teenage kids, Weiss’s son “liked the idea of having a lot of different compartments for his food.” Weiss also mentioned that it made him excited to pack different snacks.

The lunchbox by itself is not heavily insulated, so we recommend using ice packs or packing room-temperature foods that don’t need to stay hot or cold. Still, for preschoolers and elementary-school-age kids who love variety and snack-style lunches, this is a really great option.

kids bento box

Best for Big Kids

OmieBox Up

Pros

  • Hot and cold flexibility
  • Easy to open
  • Roomy compartments 

Cons

  • Heavy feel
  • Bulky

Key Specs

  • Capacity: 39.3 ounces (lunch box), 12 ounces (insulated food jar)
  • Material: Plastic
  • Ease of cleaning: Dishwasher-safe
As kids get older, their portion sizes get bigger, which is why we chose the OmieBox Up as the best option for big kids.

 It includes a 12-ounce removable thermos for hot food and two additional roomy compartments for cold food or snacks. We appreciate the hot-and-cold flexibility, which is something many lunchboxes can’t accommodate.

“This lunchbox comes with a small ice pack below the compartments that helps keep those berries (or kiwis, grapes, cheese — you name it) cool all day long, even right next to a thermos full of warm pasta,” says Scully. It gives you peace of mind, knowing that the food will remain at a safe temperature until lunchtime.

Our only issue is that just the inner tray is dishwasher-safe; all of the other pieces must be hand-washed. 

food container

Best Stainless Steel

Pura Lunch Containers

Pros

  • Durable stainless steel
  • Silicone strap doubles as extra lid protection
  • Dishwasher-safe

Cons

  • Leaky dividers
  • Limited sealing

Key Specs

  • Capacity: 16.6 ounces (small) and 27 ounces (large)
  • Material: Stainless steel
  • Ease of cleaning: Dishwasher-safe

If you want a lunchbox that is long-lasting and easy to clean, you won’t want to miss these Pura Lunch Containers. The 100 percent stainless steel is durable and safe for daily use. “From a medical and food-safety perspective, stainless steel is one of the safest materials for daily use because it doesn’t leach chemicals, resists bacterial buildup, and can be thoroughly cleaned and sanitized,” says Kristi Ruth, RDN, a registered dietitian in Pennsylvania and owner of Carrots and Cookies.

We appreciate the separate containers for various snacks or for your main dish and a side. An elastic band secures the outside to prevent leakage during transport. “However, there were times when it leaked, and my son struggled to get the bands on himself after he was done,” Scully notes. On the plus side, these lunch containers are dishwasher-safe and oven-safe.

printed lunch bag for kids

Best Kids’ Lunch Bag

Bentgo Kids Print Lunch Bag

Pros

  • Water-resistant fabric
  • Multiple pockets
  • Insulated interior

Cons

  • Slightly bulky

Key Specs

  • Capacity: 4.5 liters
  • Material: BPA-free nylon PEVA polyester
  • Ease of cleaning: Wipe clean

One of the best lunch bags for kids is this Bentgo pick, which comes in a wide range of colorful prints that make it easy for kids to spot and show off at school. “My son has used this lunch bag for school every day for the past two years!” Cossey says. “It’s incredibly durable, and I appreciate the carrying options (a top handle and a strap).” The top handle unclicks to attach to a backpack for easier portability.

It also has an insulated interior to keep food at a safe temperature for hours. We just recommend popping in ice packs. It’s also easy to clean. “I prefer machine-washable lunch bags, such as those made by Vera Bradley, or lunchboxes with a smooth lining so they’re easier to wipe down,” Ruth says. “Once you notice wear and tear in the lining, it’s time to find a new lunchbox.”

There’s a side pocket that’s big enough for a bottle of water or snacks. We appreciate that it’s big enough to hold a lunch container, a thermos, utensils, and maybe some small snacks, thanks to an interior zipper pocket. Although it does feel slightly bulky, and the zipper can be tricky at times, we still think it’s ideal for school-age kids who pack full lunches.

Comparison Table

Superlative
Capacity
Material
Ease of Cleaning
Best for commuters
8 quarts
Plastic
Hand-wash
Best bento box for kids
8.5 ounces
Rubber, stainless steel
Hand-wash
Best insulated food jar for kids 
11 ounces
Stainless steel
Dishwasher-safe
Best insulated food jar for adults
16 ounces
Stainless steel
Hand-wash
Best for summer camp
40 ounces
Stainless steel
Dishwasher-safe
Best for work
11 liters
Polyester
Hand-wash
Best for little kids
19.2 ounces
Plastic
Dishwasher-safe
Best for big kids
39.3 ounces
Plastic
Dishwasher-safe
Best stainless steel
16.6 ounces (small) and 27 ounces (large)
Stainless steel
Dishwasher-safe
Best kids’ lunch bag
4.5 liters
BPA-free nylon PEVA polyester
Wipe clean

Other Lunchboxes We Tested

  • Bentgo Chill Kids Lunch Box We love how this leakproof kids’ lunchbox includes multiple compartments for various foods and features a full-sized, removable ice pack. However, this lunchbox doesn’t offer hot and cold flexibility like some others on our list.
  • PackIt Freezable Playtime Lunch Box This PackIt Lunch Box is simple for kids to use, but we appreciate how the Bentgo Kids Lunch Bag offers multiple portability options.
  • Lalo Bento Box We’re fans of stainless steel for its ease of cleaning, so the Lalo Bento Box deserves an honorable mention. But the lid doesn’t secure as well as other similar picks on our list.
  • Fit+Fresh Bloomington Lunch Bag This Fit+Fresh Lunch Bag resembles the EasyFun pick on our list, but it’s slightly smaller. We think EasyFun’s larger capacity ensures that you can fit everything you need in your lunchbox for a full day.
  • JoyYum Bento Box for Kids We admit that this bento box is impressive with four compartments, one of which can hold the included thermos. Unfortunately, the thermos doesn’t keep food warm as long as we’d like.
  • b.box Lunchbox Multiple compartments, a built-in carrying handle, matching pieces — there’s a lot to love about this b.box Lunchbox. However, it’s on the bulky side, and we had trouble fitting it into some of our kids’ lunch bags.

How We Chose the Best Lunchboxes

testing lunch boxes
Everyday Health

To compile this list, we considered 24 lunchboxes that we’ve either tested or owned for months or years, including bento boxes, lunch bags, and more, before narrowing the list to the top 10. We and our kiddos used these lunchboxes for school, work, and more to assess how well they held up and how fresh food stayed inside them. We also considered the material, ease of cleaning, and capacity.

We also spoke with Kevin Gendreau, MD, a double board-certified obesity and family medicine physician at Signature Healthcare in Massachusetts, and Kristi Ruth, RDN, a registered dietitian in Pennsylvania and owner of Carrots and Cookies, to learn more about what to look for in lunchboxes and food safety. I also brought my own experience as a mom and teacher, having observed numerous students’ lunch routines and how quickly meals can become unappealing when they don’t stay cool or warm as they should.

Based on these tests, our personal experience with lunchboxes, and our experts’ guidance, we selected the lunchboxes that performed best at keeping food at safe temperatures, were easy to maintain, and offered durable material for everyday use.

What to Look for When Buying Lunchboxes

When shopping for the best lunchbox, focus on materials, capacity, and ease of cleaning. Knowing what matters most in each area will help you find a lunchbox that fits your routine and keeps your meals fresh and easy to pack.

  • Material The material affects how easily you can keep it clean, how long food will stay fresh, and how heavy it feels. “Stainless steel tends to be cleanest and holds temperature better, especially for thermos foods,” says Dr. Gendreau. However, we also tested and used some plastic lunchboxes and insulated lunch bags, and we found that those work just as well with ice packs.
  • Capacity It matters because it affects how practical a lunchbox is day-to-day. Too small, and you’ll need extra bags; too big, and it can be bulky in backpacks or lockers. “Don’t forget to make sure it has room for ice packs in addition to lunch containers (or a thermos),” Ruth says. The right size holds a full meal — and ice packs — without wasted space.
  • Ease of Cleaning A lunchbox should be quick and easy to clean. Removable liners or trays, smooth interiors, and dishwasher-safe materials make cleaning easier. “A good rule of thumb? If it’s annoying to clean, it probably won’t get cleaned consistently, especially on busy school nights,” explains Gendreau. In particular, avoid designs with small crevices where tiny food particles can become trapped.

What’s the Best Material for a Lunchbox?

The best lunchbox materials are those that are easy to clean, safe for food, and sturdy enough for daily use. Stainless steel is often the top choice because it holds temperature well and is easy to clean, Gendreau says. Food-grade plastic is another option many parents opt for. “Plastics are super common and can work well, but make sure you avoid microwaving or high-heat dishwashing plastic unless it’s clearly labeled as safe,” Gendreau adds. For lunch bags, look for options with insulation, and be sure to include at least two ice packs to keep food cool.

How Long Can a Lunchbox Keep Food at a Safe Temperature?

How long food stays safe in a lunchbox depends on the type of lunchbox and how it’s packed. “Cold foods should stay at or below 40 [degrees] F, and hot foods should stay at or above 40 [degrees] F, because food can spoil, especially perishables, causing food poisoning if it sits in between those temperatures for too long,” Gendreau says. Perishables should never be left out for more than two hours.

Insulated containers work best for hot foods and can usually keep food warm for several hours.

For cold foods, it’s all about insulation and ice packs. “Most lunchboxes are only as good as the ice packs that you use,” Gendreau adds. Lunchboxes with ice packs (at least two) help keep food cooler longer than regular lunchboxes.

FAQ

What is a bento box?
A bento box is a Japanese-style lunchbox with compartments that keep food separate. It’s great for packing a balanced meal in one box.
Always read and follow the manufacturer’s instructions first. Wash it after each use with warm, soapy water (or place it in the dishwasher if it’s safe), and let it dry completely before storing.
No. Most lunchboxes require ice packs to keep perishable foods at a safe temperature. Even if they’re insulated or made of materials like stainless steel, they cannot keep food cold safely on their own without a cold source.

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Jacquelyn Smith

Jacquelyn Smith

Author

Jacquelyn Smith is a writer who covers parenting, wellness, pregnancy, and general health. She is also a former public school elementary educator, a professional artist, and the cu...

Reyna-Franco-bio

Reyna Franco, RDN

Medical Reviewer

Reyna Franco, RDN, is a New York City–based dietitian-nutritionist, certified specialist in sports dietetics, and certified personal trainer. She is a diplomate of the American Col...

Daniel Oakley

Fact-Checker

Daniel Oakley is a journalist, editor, and fact-checker. He has written, edited, taught, and produced media for Dow Jones, S&P Global, IHS Markit, Third Coast Studios Magazine, and...

Katrina Cossey

Katrina Cossey

Editor

Katrina Cossey is a writer and editor with over 10 years of experience in broadcast and service journalism. Over her career, she’s covered topics such as the COVID-19 pandemic, new...

Katrina Cossey

Katrina Cossey

Tester

Katrina Cossey is a writer and editor with over 10 years of experience in broadcast and service journalism. Over her career, she’s covered topics such as the COVID-19 pandemic, new...

Simone Scully

Tester

Simone Scully is the editorial director for service commerce and marketplace content at Everyday Health. She has nearly 15 years of experience as a professional health and science ...

Sabrina Rojas Weiss

Sabrina Rojas Weiss

Tester

Sabrina Rojas Weiss has been a writer and editor for more than 25 years, 12 of which she's spent in the health and parenting space. Her work has appeared in Parents, Verywell, Yaho...

Ashley Ziegler

Tester

Ashley Ziegler is a full-time writer with extensive experience covering women’s health, babies' and kids' health, mental health, and wellness. Her work has appeared on websites inc...

EDITORIAL SOURCES
Everyday Health follows strict sourcing guidelines to ensure the accuracy of its content, outlined in our editorial policy. We use only trustworthy sources, including peer-reviewed studies, board-certified medical experts, patients with lived experience, and information from top institutions.
Resources
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  2. Keeping “Bag” Lunches Safe. U.S. Department of Agriculture. July 25, 2025.
  3. Leftovers and Food Safety. U.S. Department of Agriculture. July 31, 2020.
  4. Milestones by 4 Years. Centers for Disease Control and Prevention. September 11, 2025.
  5. Nutrition for Kids: Guidelines for a Healthy Diet. Mayo Clinic. April 16, 2025.
  6. Keeping Lunch Cool: The Chemistry of Lunch Boxes. Chemical Safety Facts. August 17, 2022.
  7. Preventing Food Poisoning. Centers for Disease Control and Prevention. November 24, 2025.
  8. Handling Food Safety While Eating Outside. U.S. Food and Drug Administration. March 5, 2024.