All in all, we spent hundreds of hours combing through thousands of user reviews to put together a comprehensive list of the best sandwich container to keep warm on the market. We then delved into these sandwich container to keep warm further and put together detailed reviews so that you can easily pick the best sandwich container to keep warm for your needs.

All in all, we spent hundreds of hours combing through thousands of user reviews to put together a comprehensive list of the best sandwich container to keep warm on the market. We then delved into these sandwich container to keep warm further and put together detailed reviews so that you can easily pick the best sandwich container to keep warm for your needs.

Best sandwich container to keep warm

Product Features Editor's score Go to site
LunchBots 16oz Thermal Stainless Steel Wide Mouth Thermos - Insulated Container with Lid Keeps Food Hot or Cold for Hours - Leak-Proof Portable Thermal Food Jar is Ideal for Soup - 16 ounce - Blue LunchBots 16oz Thermal Stainless Steel Wide Mouth Thermos - Insulated Container with Lid Keeps Food Hot or Cold for Hours - Leak-Proof Portable Thermal Food Jar is Ideal for Soup - 16 ounce - Blue
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Lunch Box ~ Pinnacle Insulated Leak Proof Lunch Box for Adults and Kids - Thermal Lunch Container With NEW Heat Release Valve, 16 oz (Blue) Lunch Box ~ Pinnacle Insulated Leak Proof Lunch Box for Adults and Kids - Thermal Lunch Container With NEW Heat Release Valve, 16 oz (Blue)
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Insulated Lunch Container Hot Food Jar - Wide Mouth Thermoses for Hot Soup Nomeca 16Oz Vacuum Food Container Stainless Steel Thermal Soup Containers with Spoon for Kids Adult Gifts School Office, Blue Insulated Lunch Container Hot Food Jar - Wide Mouth Thermoses for Hot Soup Nomeca 16Oz Vacuum Food Container Stainless Steel Thermal Soup Containers with Spoon for Kids Adult Gifts School Office, Blue
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Insulated Lunch Container DaCool Insulated Food Jar 16 oz Stainless Steel Vacuum Bento Hot Lunch Box for Kids with Spoon Leak Proof Hot Cold Food for School Office Picnic Travel Outdoors - Black Insulated Lunch Container DaCool Insulated Food Jar 16 oz Stainless Steel Vacuum Bento Hot Lunch Box for Kids with Spoon Leak Proof Hot Cold Food for School Office Picnic Travel Outdoors - Black
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Electric Lunch Box , Eocolz 2 in 1 Food Heater Warmer 1.5L with Removable Stainless Steel Container Portable for Car, Office, School and Home Use 110V & 12V 40W, Spoon and 2 Compartments Included Electric Lunch Box , Eocolz 2 in 1 Food Heater Warmer 1.5L with Removable Stainless Steel Container Portable for Car, Office, School and Home Use 110V & 12V 40W, Spoon and 2 Compartments Included
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DaCool Insulated Food Jar Vacuum Insulated Stainless Steel 16 oz Hot Food School Lunch Container for Kids Adult Office Leak Proof Keep Food Hot Cold Warm Container for Picnic Outdoors, BPA Free - Blue DaCool Insulated Food Jar Vacuum Insulated Stainless Steel 16 oz Hot Food School Lunch Container for Kids Adult Office Leak Proof Keep Food Hot Cold Warm Container for Picnic Outdoors, BPA Free - Blue
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Insulated Easy Zip Lock Resealable Aluminum Sandwich Lunch Bag - Reusable Thermal Snack Bento Camping Picnic Grocery Hot & Cold Pouch ( 5, Small) Insulated Easy Zip Lock Resealable Aluminum Sandwich Lunch Bag - Reusable Thermal Snack Bento Camping Picnic Grocery Hot & Cold Pouch ( 5, Small)
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Lille Home Premium Stainless Steel Food Containers/Bento Lunch Box With Anti-Slip Exterior, Set of 3, 470ML, 900ML,1.4L, Leakproof, BPA Free, Portion Control, Blue Lille Home Premium Stainless Steel Food Containers/Bento Lunch Box With Anti-Slip Exterior, Set of 3, 470ML, 900ML,1.4L, Leakproof, BPA Free, Portion Control, Blue
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Lunch Box ~ Pinnacle Insulated Leak Proof Lunch Box for Adults and Kids - Thermal Lunch Container With NEW Heat Release Valve 16 oz ~Set of 2~ Green-Yellow Lunch Box ~ Pinnacle Insulated Leak Proof Lunch Box for Adults and Kids - Thermal Lunch Container With NEW Heat Release Valve 16 oz ~Set of 2~ Green-Yellow
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Bentgo Classic - All-in-One Stackable Bento Lunch Box Container - Sleek and Modern Bento-Style Design Includes 2 Stackable Containers, Built-in Plastic Utensil Set, and Nylon Sealing Strap (Green) Bentgo Classic - All-in-One Stackable Bento Lunch Box Container - Sleek and Modern Bento-Style Design Includes 2 Stackable Containers, Built-in Plastic Utensil Set, and Nylon Sealing Strap (Green)
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Related posts:

1. LunchBots 16oz Thermal Stainless Steel Wide Mouth Thermos - Insulated Container with Lid Keeps Food Hot or Cold for Hours - Leak-Proof Portable Thermal Food Jar is Ideal for Soup - 16 ounce - Blue

Feature

NEW MODEL - BOWL SHAPE: Insulated thermal food containers may keep meals warm, but their tall, narrow dimensions make lunchtime a little awkward. Our 16oz Thermal was specially designed to mimic a bowl shape, making it easy to eat from and convenient to fill! It stays hot for 6+ hours, but it's also great for cold salads and fruit.
ALL STAINLESS STEEL INTERIOR: Enjoy a warm bowl of soup without your food touching plastic! The Thermal's interior, including the lid, is made of durable 18/8 stainless steel. Dishwasher safe for a no-hassle cleanup.
HOLDS A FULL MEAL: At a convenient 2-cup size, the Thermal serves up a perfectly portioned serving of soup! Its 4.5" diameter is ideal for chunky stews or fruit salad, and it makes it easy to fill with your lunchtime favorites. At 4.5" high, it goes great with the LunchBots Uno, Duo, Trio, Quad, Cinco and Pico containers and fits in our Duplex thermal lunch bag.
LEAK PROOF DESIGN: When you have a hectic schedule, you need a food jar that can keep up! Completely leak proof, the Thermal is a must-have for grab-and-go mornings. You can drop it in your purse, briefcase or backpack without the worry of accidental spills or messes.
NEW MODEL: 2017 model has improved heat retention, silicone seal is removable for cleaning, and lid is slightly smaller in diameter for easier grip.

Description

Food Stays at Just the Right Temperature!

Even when you're stuck at the office, warm chili or creamy soup can bring the comfort of home.
While thermal containers help keep your food warm, their small mouths and narrow design make
them awkward to eat from, clean and fill with food.

Keep lunchtime convenient with the 16 oz Thermal from LunchBots! Your favorite soup, chili or
even oatmeal will stay warm for 6+ hours while other foods like salad or yogurt remain cold
and ready to eat. But what truly makes our Thermal special is its bowl-shape design. The wide
mouth makes it easy to fill up and eat from, so just grab a spoon and dig in!

Unlike other insulated containers, this Thermal boasts a 2-cup capacity that holds a full meal! It's
ideal for adult-sized appetites and perfect for chucky stews or rice bowls. And thanks to the leak
proof design, you can grab it on your way out the door or drop it in your kid's backpack with no
spills and no messes!

You can always count on LunchBots for innovative, high quality designs! Our full 18/8 stainless
steel interior ensures that no harmful plastics come in contact with your food. It's durable, stylish
and dishwasher safe for a quick cleanup.

Why Choose Our Thermal?

- Keeps foods hot or cold
- Completely leak proof
- All stainless steel design
- 2-cup capacity holds full meal
- Durable, stylish and dishwasher safe

Our Customer Service Team is Standing By to Handle Your Questions!

*Stock is limited. Order today to ensure availability.

Order Your Thermal Now and Bring the Comfort of Home Anywhere You Go!

2. Lunch Box ~ Pinnacle Insulated Leak Proof Lunch Box for Adults and Kids - Thermal Lunch Container With NEW Heat Release Valve, 16 oz (Blue)

Feature

PINNACLE THERMOWARE is Here to Introduce INNOVATIVE NEWER DESIGNS of Insulated Lunch Boxes far away from the Traditional Lunch Thermoses. With its TRENDY BRIGHT COLORS, and WIDE BOWL SHAPED Opening it will SURELY be the WINNER, Getting the RIGHT NUTRITION has SOOO MANY BENEFITS, So EAT BETTER - BE HEALTHY!
SIMPLE TO HANDLE - Cool Outer Touch Even with Hot Foods Inside, EASY OPEN LATCHES even for Kids ~Try it! Natural Eating Experience - Right Out of the Bowl. 100% LEAKPROOF to Ensure NEAT and MESS-FREE Transporting, Will Easily Fit Into Any Lunch Bag, Tote Bag, Handbag, The IDEAL and BEST LUNCH CONTAINER for Women, Girls and Boys to LOVE.
NOTE: Product is a single unit.(single tiffin box)
CUSTOMER SATISFACTION GUARANTEED - Pinnacle Thermoware is a Well Trusted Brand with Great Customer Service, It is Unlikely but if for any Reason you are not Satisfied Just Return it for the First 30 Days or Contact us We will Do Everything to Make You HAPPY!! "HAND WASH ONLY - NOT MICROWAVE SAFE, B.P.A. FREE".
GREAT SOLUTION for *SPECIAL DIETS *PICKY CHILDREN *DINNER LEFTOVERS, Why Eat Out or Have Cold Sandwiches? SAVE MONEY! Enjoy Packing Warm Favorite Homemade Foods On The Go like Soups, Hot Cereals, Chili's, Rice... With this UNIQUE Lunch Container HEALTHY FOODS will Look TEMPTING & DELICIOUS!
HIGH QUALITY 18/8 Stainless Steel Interior Lunch Box will Keep Your Food Warm {not hot} for up to 4 hrs. and Cold for up to 6 hrs. Work like a Thermos Perfect Portion Control Size of 16 oz. Capacity. ~ THE HEALTHY CHOICE - You Don't Need to Microwave and it Will PRESERVE THE ESSENTIAL NUTRITION, VITAMINS AND TASTE.

Description

Do you enjoy a healthy homemade warm lunch when you're on the go? Then the ideal lunch box for you is the Fresh 'N' Go Pinnacle Leak Proof Thermo Lunchboxit goes from your kitchen counter right to your school or office desk or wherever you wish to take it along....

The lunch box is made out of high quality material with an 18/8 stainless steel interior. It will keep your most favorite foods warm for up to 4 hrs. and cold for up to 6 hrs. Its capacity is 16 oz.

It has leak proof technology and easy open snapware. Say good bye to messes and spilling, just fill it with your beloved foods as hot cereals, soups, salads...close the lid and when mealtime rolls around enjoy a hassle and mess free eating experience.

We special designed it with a wide bowl shaped opening to be able to eat the natural way and have an easy time filling.

It's so easy and portable there is no need to microwave or refrigerate but you can still enjoy your healthy meals everywhere plus the essential nutrients and taste won't be ruined.

It's Great for adults and kids with its trendy and sleek design and a variety of colors to choose from every family member or friend will LOVE it!!!

To retain temperature: Prior to use prefill the lunch box with hot water and let stand for several minutes then fill with your favorite foods. For cold foods fill with cold water and let stand a few minutes and then fill with the cold food.

Lunch box works best when completely filled. If only partially filled contents will lose temperature more rapidly.

This product is not dishwasher and microwave safe.

B.P.A. free

Now available in a set of 2 ~ in 2 great colors...choose the ones you love! EXCELLENT DEAL!

ONLY LIMITED EDITION AVAILABLE - ORDER NOW TO GET YOURS!!!

3. Insulated Lunch Container Hot Food Jar - Wide Mouth Thermoses for Hot Soup Nomeca 16Oz Vacuum Food Container Stainless Steel Thermal Soup Containers with Spoon for Kids Adult Gifts School Office, Blue

Feature

Long Time Food Flask with High Insulation Technology: Double-walled vacuum insulation keeps liquids hot or cold for up to 12 hours. Food can keep hot for 5 hours and longer. Bring hot foods like soup, pasta, or rice to work or school without needing to use a microwave!
Leakproof & Food Grade Material: Nomeca Food Jar is built in food grade 304 stainless steel material with BPA free, no PVC, FDA-approved. Seamless welding technology of inner tank to enhance insulation. Perfect for daily packing countless meal preps, breakfasts, lunches, dinners, and snacks and so on.
Perfect Capacity with a Folding Spoon: 16Oz(450ml) capacity is big enough to fit an entire meal yet small enough to fit nicely in kids lunch boxes or adult lunch bags.We provide a folding spoon to make you use it more convenient.
Wide Mouth Design & Easy to Clean: The extra wide mouth of our thermoses container can help you easy to eat. Designed with an easy twist off cap, jars are easy to clean.
1 Year Warranty & Good Customer Service: We provide good customer service. If there is any question of our product or not satisfied with our service please contact us we will here to help you. Order with no hesitation!

Description

Description:
Us: Nomeca food jar is designed by double wall vacuum insulation keeping foodshot or cold for up to 12 hours. An ideal choice for people on the go.

Our vacuum insulated food jar:
Premium Quality: Food grade 304 stainless steel material with BPA free, no PVC, FDA-approved
Up to 12 hours Insulation: Our thermoses container uses newest insulation technology that can keep liquids hot or cold up to 12 hours.
Compact Size & Portable: 450ml(16Oz) capacity is not only enough for daily use nut also suitable for outdoor.
Folding Spoon: A folding spoon is added, it is convenient to your use, no need to prepare extra spoon yourself.
Wide Mouth & Non-slip Mat Design: 3 inch wide mouth is easier to fill and get out food from bottle when you use it. It is safer for the non-slip mat at the bottom of food jar
Easy to Clean: Smooth surface makes the food jar easy to wash,you can wash it with warm, soapy water.

How To Use:
1.Pour in hot water / cold tap water, cover lid, let it stand for for 5 to 10 minutes to preheat / precool the jar, empty the water.
2.Pack your food and cover lid.
3.When eating, press the vent button for 1 to 2 times and then open the inner insulation cover.

NOTE:
1.Do not use product in dishwashers, microwave, oven, on stove-top, or in any type of heating appliances.
2.Do not overfill the container: Leave space at top of container for lid and stopper (if present), to avoid overflow.
3.Check periodically for missing and worn washers. Missing, worn or misaligned gasket may cause product to leak.

Specification:
Material: 304 stainless steel+food-grade silicone+food grade pp
Capacity: 16 ounce
Wide mouth: 3 inch
Size: 5.8*3.7*3.7 in
Weight: 12 oz / 350g
Color: Blue

Package Include:
1 x Insulated food jar
1 x Stainless steel spoon
1 x User manual

4. Insulated Lunch Container DaCool Insulated Food Jar 16 oz Stainless Steel Vacuum Bento Hot Lunch Box for Kids with Spoon Leak Proof Hot Cold Food for School Office Picnic Travel Outdoors - Black

Feature

Safety & Lifetime Warranty by ''DaCool'' -- BPA free, no PVC, FDA-approved, 304 stainless steel, food grade material. We are always trying to provide great product and customer service, if any dissatisfaction, please feel free to contact us, we promise lifetime warranty!
Vacuum Insulation Technology -- Double wall stainless steel, besides, unique copper coated insulation and seamless welding technology, great beautiful insulated food jar for hot food & cold food for kids adult for school office.
Long Time Insulation -- Important Tips: Please pour in hot & cold water to preheat & pre-cool for 5~10 minutes before packing food. Keeps liquids hot & cold for 12 hours, package may vary. Please enjoy your healthy food even outside.
Wide Mouth with Spoon -- The extra wide mouth can help you easy eating with the shipping stainless steel folding spoon, also easy to fill food into this food jar and clean after use.
Double Lids Design -- The food grade material outer lid can be used to hold food, also be greater for insulation and leak proof, you will like the food jar with convenient leak proof double lids.

Description

How to use
1.Pour in hot water / cold water, cover lid, let it stand for for 5 ~ 10 minutes to preheat / precool the jar, empty the water.
2.Pack your food and cover lid.
3.When eating, press the vent button for 1 to 2 times and then open the inner insulation cover.

Why choose DaCool insulated food jar

Firstly, Unique technology and sweet design
1. Seamless welding technology of inner tank to enhance insulation.
2. Copper coated to enhance insulation.
3. Double wall 304 stainless steel Vacuum Insulated.
4. Double lids, outer lid can hold food, which can enhance insulation and leak proof.
5. Inner lid has an balanced pressure exhaust valve, please do not worry that you can't open lid after packing hot food for a long time, just press the exhaust valve for 1~2 times and then open it easily.
6. Equipped with a folding stainless steel spoon.
7. Equipped with non-slip mat at the bottom of food jar.
8. Beautiful color, the bule is a bit more like a teal color, really nice in appearance!

What's more, LIFETIME WARRANTY
We offer this hot food jar lifetime warranty. If you have any question or your experience is less than 100% perfect, please feel free to contact us seller via Amazon message, we will provide you good solution ASAP once we receive your email. Thank you so much for your trust.

Material
Food Jar: Double-layer 304 stainless steel, Copper coated insulation
Outer Lid: Food-grade pp
Inner Lid: Food-grade silicone
Spoon: 304 stainless steel
All of material are food-grade material, BPA free, PVC free, FDA approved.

Specification
Capacity: 16 ounce
Wide mouth: 3 inch
Size: 5.8*3.7*3.7 in
Weight: 12 oz / 350g
Color: Cyan Blue/Pink/Gray/Black

What you get
1 x Insulated food jar
1 x Stainless steel folding spoon
1 x User manual
Lifetime warranty and friendly customer service.

5. Electric Lunch Box , Eocolz 2 in 1 Food Heater Warmer 1.5L with Removable Stainless Steel Container Portable for Car, Office, School and Home Use 110V & 12V 40W, Spoon and 2 Compartments Included

Feature

2 IN 1 CAR & HOME DUAL USE - Our electric lunch box / food warmer contains two different plugs: one for work/home (110V) and another one for car/truck (12V). You can carry the portable lunch heating storage box everyday and conveniently heat meals in different places. Say goodbye to fast food!
SAFE FOOD GRADE MATERIAL - The electric bento box is made of food grade plastic and 304 stainless steel container. Our thermal food container has strong heat resistance and meets the safety standards of dietary materials.
FAST HEATING - Adopting PTC energy-saving heating components providing security against overheating. Using low-consumption heat cycle to keep food at a suitable temperature and keep the moisture of the food. No Need to looking for a microwave and wait in line for heating, just plug in the cable and you can have a warm meal sitting in your seat at school, in office, or during travel.
EASY TO CLEAN - This food heater storage lunch box contains a removable stainless steel tray, which you can clean it easily. In addition, it is dishwasher friendly! And the waterproof design of the plug port can keep it from the water while not heating, 100% safe.
FRIENDLY DESIGN - It has 2 compartments, stop mixing your food! We have included a removable plastic compartment in case you want to separate different types of food. Also, we have included an spoon completely for free. If you are not 100% satisfied with your order, we will refund you, no questions asked!

Description

Our electric lunch box featuring fashionable outlook and portable handle for you to carry the food everywhere like in your car and office, Also useful for school, picnic, road trip and camping etc,.

Specifications:
Voltage: 12V and 110V
Watts: 40W
Material: 304 Stainless Steel and High-Quality Plastic
Dimensions: 9x7x5 inches
Capacity: 1.5 L

Instructions:
1. Introduce the food into the electric lunch box.
2. Plug in the correspondent plug. Make sure it is plugged correctly and the lunch box is closed perfectly.
3. Make sure the steam outlet is opened.
4. Wait a few minutes, and enjoy your meal!

Tips:
1. Please pull out the power cord before eating.
2. Heating time depends on the amount of food, and the indoor temperature.
3. When the food out from the fridge, the heating time should be extension appropriate.
4. If the food has been set aside for a long time, it is suggested to add some water into the food and then plug in to heat so that the food would become softer.

Package Includes:
*1x Electric Lunch Box
*1x Car/Truck Plug
*1x Home/Office 110V Plug
*1x Plastic Spoon, Plastic Additional Compartment
*1x Manual

If you are not completely satisfied with your order, we have a lifetime warranty!

6. DaCool Insulated Food Jar Vacuum Insulated Stainless Steel 16 oz Hot Food School Lunch Container for Kids Adult Office Leak Proof Keep Food Hot Cold Warm Container for Picnic Outdoors, BPA Free - Blue

Feature

Safety Hot Food Jar -- 304 stainless steel, BPA free, no PVC, food grade material, please feel free to order it without any worry. If you have any question or problem at any time about this insulated lunch containers, please feel free to email us seller via Amazon message, we will provide you wonderful lifetime customer service, thank you so much for your trust:)
High Quality Insulation Technology -- This hot food jar is designed with double wall vacuum stainless steel, great copper coated insulation technology, special heat insulation foam, which help you keep food hot or cold for a long time in Winter or Summer.
Long Time Insulation -- Important Tips: Please pour in boiling & cold water to preheat & pre-cool for about 10 minutes before packing food into this hot cold food container. Keeps liquids hot & cold for 12 hours, keeps meat food hot more than 4 hours. Package may vary. Please enjoy your healthy delicious food drink at school office or outside.
Wide Mouth -- The 2.7 inch wide mouth is easy for eating directly from this stainless steel containers, also easy for filling food into and cleaning.
Wide Application -- This insulated stainless steel lunch containers is great for kids girls boys adult women, at school picnic camping and outdoors, children would enjoy their healthy delicious food that prepared by warm families. At office or outdoors, adult also can enjoy hot lunch momentarily. In summer, this insulated food container also can keep cold food cold for a long time. Also a great necessity gift for kids in back to school season.

7. Insulated Easy Zip Lock Resealable Aluminum Sandwich Lunch Bag - Reusable Thermal Snack Bento Camping Picnic Grocery Hot & Cold Pouch ( 5, Small)

Feature

SIZE: 9.84 x 10.97 x 4.72 Inch (5 Pieces)
KEEP FOOD AT DESIRED TEMPERATURE FOR HOURS These hot cold bags are an ideal solution to keep your warm food warm and cold food cold for hours, be it seafood, fruits, drinks, milk, sandwiches, pizza, salads or other things. Whether you want to go for beach picnic or just want to carry your groceries, these bags prove to be good companion. Moreover, the bags are extremely durable yet inexpensive!
FOOD SAFE REUSABLE BAGS Our insulated thermal bags are made up of Aluminum film, Foam Paper, which are all food-safe. They are lightweight, moisture proof, shock proof and thermal insulation.
ZIP LOCK - The Zip Lock offered by the bag ensures that your food is certainly kept at the desired temperature and as fresh as you would want it to be. (If you put the ice pack in the bag, the effect of heat insulation or cooling will be maximized.)
Please check the size of bag before make an order

8. Lille Home Premium Stainless Steel Food Containers/Bento Lunch Box With Anti-Slip Exterior, Set of 3, 470ML, 900ML,1.4L, Leakproof, BPA Free, Portion Control, Blue

Feature

Premium Material Made of premium SS304, this set of food containers are sturdy and durable. They are eco-friendly, BPA free and non-toxin, which can keep your food fresh for a long period. Please note these are NOT insulated so they won't keep food warm or cold.
Leakproof The snap-on lids provide an airtight, leakproof seal to preserve freshness and prevent food from leaking and spilling. They are perfect for work, school, picnic, camping, etc. Please DO NOT use these containers in the dishwasher as it will make the lids gradually distort so they wont be leakproof anymore.
Space Saver This set includes three different-sized containers which conveniently nest inside each other to save space in your kitchen cabinet when not being used. They are also very easy to clean.
Non-Slip Exterior The exterior is made of non-slip material which will not only prevent the slipping, but also provide a perfect way to isolate the heat from the hot food so your hand wont get burned.
Enjoy Home-Made Food Wrap it with ribbons, give it to someone you love so they can enjoy home made delicacy for a healthier eating style!

9. Lunch Box ~ Pinnacle Insulated Leak Proof Lunch Box for Adults and Kids - Thermal Lunch Container With NEW Heat Release Valve 16 oz ~Set of 2~ Green-Yellow

Feature

KIDS AND ADULT LUNCH BOX suitable for all ages, our thermal lunch box is exactly what you need to enjoy lunch on the go. It is robust, generous in size and lightweight so you can enjoy your favorite meal, wherever you are
SUPERIOR THERMAL TECHNOLOGY the wide bowl shaped design features an 18/8 stainless steel interior which will keep your food warm (not hot) for up to 4 hours and cold for up to 6 hours. There is no need to microwave your food or cool it in the fridge before eating
NEW HEAT RELEASE VALVE our bestselling insulated lunch box design has been upgraded and now features a vacuum knob heat release valve. Simply lift the easy to access latch so heat can escape to ensure you enjoy your meal at just the right temperature. Kids love it!
EASY FASTENING LID theres nothing worse than a leaky hot lunch box which is why we have designed ours to be completely leak proof. The 4 easy to access clips secure the lid on tight to lock in the temperature and prevent leaks and spills. It really is the best way to enjoy your favorite meal on the go, without any mess You can even stand the box on the lid when eating
LIGHTWEIGHT FOR YOUR CONVENIENCE perfect for adults to carry to the office or for kids to take to school or college. The sleek design looks professional and keeps your food warm until lunch time. The outside of the lunch box will always feel cool, even when there is warm food inside

10. Bentgo Classic - All-in-One Stackable Bento Lunch Box Container - Sleek and Modern Bento-Style Design Includes 2 Stackable Containers, Built-in Plastic Utensil Set, and Nylon Sealing Strap (Green)

Feature

2 STACKABLE CONTAINERS: Top container features 2 compartments that each hold 3/4 cups of food while the bottom container holds 2 cups together theyre perfect for packing a variety of foods in healthy portions
BPA-FREE: Made with food-grade, eco-friendly materials that are microwave, dishwasher, and freezer safe (Note: Do not put center divider in dishwasher or microwave)
COMPACT & EASY STORAGE: Top container nests inside the bottom one for compact & easy storage
PURCHASE WITH A PURPOSE: Bentgo continues to be a proud supporter of Feed the Children, a 501(c)(3) nonprofit that gives hope and resources for hungry children and families. Since 2017, Bentgo has donated more than $200,000 to help put an end to hunger.
WHAT YOU GET: Bentgo Classic lunch container, sealing strap, 3-piece utensil set, user manual, industry-leading 2 Year Warranty, and caring customer support.

Conclusion

By our suggestions above, we hope that you can found the best sandwich container to keep warm for you. Please don't forget to share your experience by comment in this post. Thank you!