How long does it keep food hot?

9 hours hot, 14 hours cold per specs, though real-world varies; many report 6-8 hours still steaming.

Is it dishwasher safe?

Officially no, but many users put it on the top rack without issues; hand washing recommended for longevity.

Does the spoon work well?

Yes, the folding spoon is sturdy and convenient, but some wish it were longer.

Thermos

Thermos Stainless King Vacuum-Insulated Food Jar 24oz (Midnight Blue)

5/5 (5)

$19.29$27.10-29%

Out of Stock

The Thermos Stainless King Vacuum-Insulated Food Jar 24oz (Midnight Blue) is a 24-ounce insulated food jar designed to keep hot meals warm for up to 14 hours and cold meals chilled for up to 24 hours. Constructed from 18/8 stainless steel with double-wall vacuum insulation, it features a leak-resistant lid that doubles as a serving bowl and a sweat-proof exterior. This floor model item is fully functional but may show light cosmetic imperfections and may not include original packaging; it is dishwasher safe on the top rack.

Color: Midnight Blue
Material: 18/8 Stainless Steel, Double-wall vacuum insulated
Category: Home & Garden > Kitchen & Dining > Food & Beverage Carriers > Thermoses

View on merchant site JSON

GTIN: 041205747536
MPN: THERMOS-041205747536-FLOORMODEL

Specifications

Double-wall vacuum insulated stainless steel food jar that keeps food hot for up to 9 hours and cold for up to 14 hours, with a wide mouth and folding spoon.

Thermos vacuum insulation technology, Durable stainless steel interior and exterior, Sweat-proof exterior, Folding spoon included, Wide mouth easy to fill, eat from and clean, Built-in insulated serving bowl, Includes pressure relief stopper

Color: Midnight Blue · blue
Material: 18/8 Stainless Steel, Double-wall vacuum insulated
Occasion: everyday, travel
Gender: unisex
Age Group: adult
Condition: used
Dimensions: 5.6 x 3.7 x 3.7 in
Category: Home & Garden > Kitchen & Dining > Food & Beverage Carriers > Thermoses

Additional Attributes

vacuum insulated
keeps hot for 9 hours
keeps cold for 14 hours
double-wall vacuum insulation
18/8 stainless steel
wide-mouth
includes folding spoon
includes pressure relief stopper
sweat-proof exterior
built-in serving bowl
leak-proof when closed
dishwasher safe
top rack recommended

Image Analysis

4 images

01high: Front-facing studio product photo of a cylindrical insulated Thermos food jar with a dark navy matte body and a silver stainless steel lid showing the THERMOS logo on the front.
OCR: THERMOS
matte dark blue painted bodyglossy stainless steel lidscrew-on capraised logo badgeTHERMOS text logo on frontrounded cylindrical shapetapered shoulderflat basestudio white backgroundfront product-only shoteven soft lighting
02high: Close-up product shot of an olive green Thermos insulated jar with its stainless steel built-in serving bowl open in front, a matching travel mug with handle in the background, and scattered cashew pieces on a tabletop beside a wood board.
OCR: SIMPLICITY WORTH CELEBRATING. THERMOS. THERMOS. BUILT-IN DOUBLE WALL SERVING BOWL
insulated food jar bodyinsulated travel mug with handlebuilt-in double wall serving bowlstainless steel rimblack screw lidTHERMOS logo on jarTHERMOS logo on travel mugolive green matte finishbrushed stainless steel finishmatte black interior of bowl lidlight wood cutting boardgray tabletop surfacescattered cashew piecesoutdoor blurred backgroundstudio-style natural lightinglarge headline text panel at topwhite promotional text at bottom right
03high: Studio product shot of a navy Thermos food jar with a brushed silver lid on a white background, annotated with features, dimensions, and capacity.
OCR: GEAR THAT DOESN'T TAKE A DAY OFF. THERMOS. Wide Mouth Opening. Easy to fill, eat from and clean. Vacuum Insulated. Keeps Hot 14 Hours. Keeps Cold 24 Hours. Sweat-proof Exterior. Dishwasher Safe. 24oz/710ml. 7.2 in. 3.7 in
brushed stainless steel lidwide mouth openingmatte dark blue cylindrical bodyTHERMOS logo badgescrew-on cap shaperounded basevacuum insulated wall (visible gap seam)sweat-proof exterior finish labeldishwasher safe labelcapacity label 24oz/710mlvertical dimension mark 7.2 inhorizontal dimension mark 3.7 instudio white backgroundtop grey promotional bannerleft diagonal stripe bordersoft shadow under productfront-facing product shot
04high: Close-up studio shot of an open dark blue Thermos bottle showing a stainless steel threaded rim and cut fruit inside; left panel shows product feature text and icons.
OCR: IT'S ALL IN THE DETAILS. DISHWASHER SAFE. BPA-FREE. 18/8. HIGH QUALITY STAINLESS STEEL. THERMOS
stainless steel threaded rimwide mouth openingmatte dark blue exteriorTHERMOS logo text on bodycut fruit inside containerred grape piecesorange cantaloupe piecesgreen melon piecescylindrical bottle bodystudio product close-up shotsplit background with dark blue panelwhite background areaproduct lighting with soft shadowstext labels and icons on left paneldishwasher safe iconBPA crossed circle icon18/8 circle icon

Brand PDP Lookup

Brand: Thermos
URL: https://thermos.com/products/stainless-king-food-jar-16oz

16oz Stainless King™ Insulated Food Jar | Thermos®

Also Seen Here

4 retailers

amazon.com
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THERMOS Stainless King Vacuum-Insulated Food Jar, 24 Ounce, Midnight Blue
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target.com
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Thermos 24 oz. Stainless King Vacuum Insulated Stainless Steel Food Jar
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walmart.com
high
Thermos Stainless King Vacuum Insulated Food Jar with Folding Spoon, Matte Stainless, 24oz
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officedepot.com
high
Thermos Stainless King Food Jar 24Oz Food Storage Serving Dishwasher Safe 3.7 Diameter Midnight Blue
Thermos
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Documents & Data

Customer Reviews

5 reviews · out of 5

A+

★★★★★Doug R.03/06/26

These are the greatest things for hot and cold, coffee and food. Perfect size

Wonderful

★★★★★Rachel B.11/28/25

So happy with this purchase. Great quality. We preheat as suggested and soup comes out steaming hot 2 hours later. Love it!

Awesome

★★★★★Roxanne P.10/21/25

This is perfect! My son wanted to take soup for lunch and this is just the thing. Keeps it hot and holds a whole can of soup

Thermos review

★★★★★Richard H.05/18/26

Compact, hold heat well, love the integrated spoon

Great product

★★★★★Nathan J.01/12/26

The best for cold weather camp breakfast. Also great for enjoying a hot lunch at work without using the community microwave.

Reddit Insights

6 threads · r/CampingGear, r/newzealand, r/BuyItForLife

Reddit overwhelmingly praises the Thermos Stainless King Food Jar for its durability, heat retention, and handy spoon/bowl design, though some note lid tightness and a recent recall.

positive sentiment100% match

Most comments are positive, highlighting longevity, performance, and build quality, with minor complaints about lid usability and a recall causing concern.

Themes

Heat Retention Performancepositive

Durability and Build Qualitypositive

Included Spoon and Bowl Designpositive

Lid Tightness and Opening Difficultynegative

Recall and Safety Concernsnegative

Use Cases

Camping and hiking meals
Daily work lunches

Watch Out For

highRecall affecting some units due to potential bottle brush bristle ingestion hazard.

mediumLid can become extremely hard to unscrew, especially with hot contents and wet hands.

lowNot officially dishwasher safe; prolonged dishwasher use may damage vacuum insulation.

Community Q&A

How long does it keep food hot?: 9 hours hot, 14 hours cold per specs, though real-world varies; many report 6-8 hours still steaming.
Is it dishwasher safe?: Officially no, but many users put it on the top rack without issues; hand washing recommended for longevity.
Does the spoon work well?: Yes, the folding spoon is sturdy and convenient, but some wish it were longer.

Compared To

vs Stanley food jars

Thermos beats Stanley in heat retention, but Stanley has a better lid design.

vs Zojirushi food jars

Zojirushi is praised for heat retention, but Thermos is more durable and has a useful spoon/bowl.

Source Threads

Comparison of food thermos brands, Thermos vs Stanley
Thermos Stainless King is the best for heat retention. I've had soup still steaming after 8 hours. Stanley looks cooler but doesn't keep heat as well.
u/CampingEnthusiast99r/CampingGearView thread →
Recommendation request for thermos that keeps food hot long
Get the Thermos Stainless King 16oz. It's the gold standard. Yes, the lid is sometimes a pain, but nothing beats the heat retention. I've used it for 4 years and still works like new.
u/trailblazer42r/CampingGearView thread →
New Zealand thread discussing Thermos food flask for travel
Bought the Thermos Stainless King for my husband's work lunches, he loves it. Keeps his stew piping hot from 6am to noon. Definitely recommend.
u/KiwiOutdoorsGalr/newzealandView thread →
BIFL review of Thermos King Food Jar, long-term use
Have had mine for 6 years, still going strong. Spoon is a bit short but sturdy. The lid can be hard to unscrew after hot food, but otherwise it's a tank.
u/frugal4lyfer/BuyItForLifeView thread →
Discussion on hot/cold food jars, Thermos recommended
I've used the Thermos Stainless King for camping and daily lunch. The built-in bowl and spoon are genius. Food stays hot for a solid 7-8 hours. Minor gripe: the lid gets smudgy.
u/outdoorchefr/CampingGearView thread →
Recall announcement for Thermos Stainless King Food Jar
Thermos is recalling 8.2 million Stainless King Food Jars due to a potential choking hazard from the pressure relief stopper breaking and releasing bottle brush bristles. Check your model number.
u/safetyfirst101r/BuyItForLifeView thread →