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Crock-Pot 20-Ounce Electric Lunch Box Review: Tiny desk-side warmer for patient planners

The Crock-Pot 20-Oz Lunch Box is a tiny desk-side warmer for patient planners, best for teachers with short lunch breaks. Rated 4.6 out of 5 across 13,754 user ratings. The main drawback: holds a single portion only. We scored it 4.6 out of 5.

By Whimsical Pris, Kitchen Editor Published December 15, 2025 Updated September 26, 2026
4.6Our score
Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 2 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 3 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 4 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 5 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 6 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 7 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 8 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 9 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 10 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 11 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 12 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 13 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 14 Crock-Pot 20-Ounce Electric Lunch Box, Portable Food Warmer, Faded Blue, Perfect for Travel, Car, On-the-Go, Keeps Food Warm, Spill-Free, Dishwasher-Safe, Ideal Gift for Men and Women, view 15
Product gallery, 15 images
$46.32 Check price on Amazon

Prices shown were correct on September 26, 2026 and change frequently.

TL;DRThe Short Answer: Is the Crock-Pot 20-Oz Lunch Box Worth It?

Think of this as a lunch-sized slow cooker, not a microwave, and it makes sense. The Crock-Pot 20-ounce warmer takes 45 minutes to over two hours to heat a single portion, and in exchange it never dries food out, never burns it, and saves you from the queue at the shared microwave. It suits anyone who eats at the same desk or classroom every day and can plug it in mid-morning. It holds one person's lunch and runs from a wall socket; there's no car cord in the box.

NoFussDeal rates the Crock-Pot 20-Oz Lunch Box 4.6 out of 5 at $46.32. Last updated September 26, 2026.

Key Facts

Product Dimensions
6.7"D x 6.6"W x 6.3"H
Material
Plastic
Color
Faded Blue
Special Feature
Portable, Easy Clean
Brand
Crock-Pot
Recommended Uses For Product
Food Warming

What Stands Out

  1. 20-ounce personal-size warmer for soup, pasta, leftovers or oatmeal
  2. Seal and Store lid to keep food in while you carry it
  3. Detachable cord that stores with the base
  4. Inner food container and lid are dishwasher safe
  5. Soft-touch matte exterior at 6.7 x 6.6 x 6.3 inches
  6. Comes with the warming base, lid and power cord

Strengths and Drawbacks

What works

  • Food comes out hot and moist, never dried out or burned
  • 20-ounce size suits one portion of soup, pasta, leftovers or oatmeal
  • Screw-on Seal and Store lid that doesn't leak in transit
  • Inner container and lid are dishwasher safe
  • Small enough to leave on a desk and carry by its handle
  • Soft-touch finish and retro looks that make it a popular gift
  • Saves queueing for a shared microwave

What does not

  • Slow: 45 minutes to over two hours, depending on the food
  • Holds a single portion only
  • The detachable cord's plugs pop out of storage, and the cord is short
  • Paint on the lid rim can wear within weeks
  • Wall socket only; there's no car cord in the box

Features in Depth

01

A 20-Ounce Personal Warmer, Sized for One

Capacity 20 oz Material BPA-free plastic Compartments 1

The container holds 20 ounces, one generous portion of soup, stew, pasta or leftovers. Crock-Pot pitches it as a personal size, and the size is right for a work lunch: small enough to carry by its handle, big enough to feel like a meal. It has a single compartment, and Crock-Pot lists the material as BPA-free plastic. The whole unit measures 6.7 x 6.6 x 6.3 inches, so it sits on a desk corner without fuss. Because the container lifts out of the base, you can pack it at home and leave the base at work, a routine that suits a teacher's day well.

$46.32 4.6/5 Check price
02

Soft-Touch Finish in Several Colours

This version Faded Blue Other finishes Black Licorice, pink, green Exterior Soft-touch, matte rubberised

This version comes in Faded Blue, and Crock-Pot sells the same warmer in other shades, including Black Licorice, blush pink and green. Whatever the colour, the exterior has a matte, rubberised soft-touch coating and a retro shape that people like enough to give as gifts. The looks are a big part of its charm. Paint can wear off the small grey rim the lid screws onto within about a month, which doesn't affect how it works but is worth knowing if looks matter.

$46.32 4.6/5 Check price
03

Slow Heat: 45 Minutes to Over Two Hours

Typical heat-up 45-60 minutes Slowest heat-up About 2.5 hours Method Slow, even warming

This is the trade-off to understand before buying. The base warms food gently, the way a slow cooker does, so dense meals take time: 45 minutes to an hour is typical for something like bone-in chicken and mashed potatoes, and for lunch properly hot, allowing about two and a half hours is safer. Whether that heating time suits you mostly comes down to expectations. Plug in early and it is a delight; expect microwave speed and it is not. The pay-off is texture: food is never dry, never overcooked and never burned. Frozen food takes longer still, so soften a frozen meal for a minute in a microwave at home first, or freeze portions in 20-ounce silicone bowls that slot straight in.

$46.32 4.6/5 Check price
04

Lid, Cord and Cleaning

Dishwasher safe Inner container and lid Cord Detachable, on the short side Lid Seal and Store, screw-on

The Seal and Store lid screws on, and it carries soup without leaking. The inner container and lid are dishwasher safe, while the warming base only gets wiped. The cord detaches and wraps under the base, which keeps things tidy in theory, but the plugs can keep popping out of their slots, and the cord is on the short side, so you may need an extension depending on where the outlet is. Keeping the base on your desk with the cord inside it solves both. The only cord in the box is a standard power cord, so this is a wall-socket warmer, not one for the car.

$46.32 4.6/5 Check price

How We Scored It

Based on
The manufacturer's published specifications and the product's live Amazon listing.
Owner rating
4.6 out of 5 on Amazon, recorded September 26, 2026
How we score
We score each thing that comes up most in owner feedback on the Crock-Pot 20-Ounce Electric Lunch Box. Eight things come up most in owner feedback: seven draw praise and one splits opinion. Its ratings average 4.6 stars (81% five stars, 10% four, 4% three and 5% one or two), so every score starts at 92, that average on a 100 point scale. Where opinion is split, we take off 6. Where it draws mostly complaints, we take off 12. Then we read six owner reviews in full (every one we found gave it four or five stars) and move the score up to 5 points either way depending on how the owners who mention it rated the product. Our overall score starts from the same 4.6 star average and loses 0.1 for each thing that draws mostly complaints, with 0.1 more when at least a tenth of ratings are one star, never more than 0.3 in all. Nothing comes off here, so it stays at 4.6. Read our editorial standards

Temperature Retention

All of the six owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

Size

Crock-Pot lists the capacity as 1.3 pounds and the product dimensions as 6.7"D x 6.6"W x 6.3"H. Three of the six owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

Suitability For Work

All of the six owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

Heating Performance

All of the six owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

Appearance

Crock-Pot lists the color as Faded Blue and the material as Plastic. One of the six owner reviews we read mentions it. That owner gave the product four or five stars. Score 92: its 4.6 star average on a 100 point scale.

92Positive

Heating Time

All of the six owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 9% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 86: we started at 92 and took off 6 because opinion …

Read the full note (409 characters)

All of the six owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 9% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 86: we started at 92 and took off 6 because opinion is split.

86Mixed

Owner Satisfaction

81% of ratings are five stars and 10% are four. 4% are three stars and 5% are one or two. Very few ratings land that low. Score 92: its 4.6 star average on a 100 point scale.

92Positive

Value for Money

Four of the six owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

Specifications

Size and weight

Product Dimensions
6.7"D x 6.6"W x 6.3"H

Materials and warranty

Material
Plastic
Color
Faded Blue

Other specifications

Special Feature
Portable, Easy Clean
Brand
Crock-Pot
Recommended Uses For Product
Food Warming

What Buyers Say

Based on 13,754 Amazon customer ratings, averaging 4.6 out of 5, recorded 12 September 2026. See the reviews on Amazon

5 stars 81%
4 stars 10%
3 stars 4%
2 stars 2%
1 stars 3%
★★★★★

Enjoy a hot, peaceful lunch!

I learned of this warmer 3 years ago and kick myself for not jumping on it then. If you're a teacher, then you know a 30 to 40 minute lunch is really 15 minutes at best after taking students… Read it on Amazon
Amazon Customer · May 9, 2026 · Verified
★★★★★

Cute and Convenient Personal Food Warmer

This is a really convenient little lunch warmer if you like bringing your own meals. The 20 ounce size is perfect for a personal portion like soup, pasta, leftovers, or oatmeal. It is small … Read it on Amazon
shjen · March 10, 2026 · Verified
★★★★★

A perfect little pot for on the go

Perfect little mini crockpot to take to the office, on the go or for a quick single serve meal. I love this little crock pot, it’s a cute little pot, great quality, easy to transport, love t… Read it on Amazon
Carseat-mom · January 20, 2026 · Verified
★★★★★

Amazing warmer!!!

**UPDATE** its December of 2025 and this still works great!! I use it multiple times a week and it works just as well as when I first bought it! Great for frozen soups/meals. I purchased "Si… Read it on Amazon
mary · June 3, 2023 · Verified
★★★★★

Great for heating single serve lunches

Purchased this for taking leftovers to work. It works really well and I use it a lot in cold weather. Nice to have a warm meal when it's cold outside. Takes about an 45-60 mins to heat depen… Read it on Amazon
Oliver Hornick · August 8, 2026 · Verified
★★★★★

Xmas Idea

These work amazing and also make GREAT Christmas gifts for someone to reuse and definitely get your monies worth! Keeps food hot till you want it and easy to use and store without taking up … Read it on Amazon
Gracie Ann Elliott · September 9, 2026 · Verified

Setting It Up

  1. Wash Before First Use

    Wash the inner container and lid, by hand or in the dishwasher.

  2. Load the Container

    Fill it with cooked food, leaving a little room below the rim.

  3. Seal the Lid

    Screw the Seal and Store lid on firmly before you carry it.

  4. Place in the Warming Base and Connect Power

    Set the container in the base, attach the cord and plug it into a wall socket.

  5. Allow Time to Heat

    Allow 45 minutes to an hour for most meals, longer for dense or frozen food. A stir before eating evens things out.

  6. Unplug and Serve

    Unplug, then open the lid carefully, since the food and container will be hot.

Common Questions

Is the inner container stainless steel or plastic?

Crock-Pot lists the material as BPA-free plastic. The container and lid are dishwasher safe; the warming base is wiped only.

What colour will actually arrive, Faded Blue or Black Licorice?

This version is Faded Blue. Crock-Pot sells the warmer in several colours, including Black Licorice, pink and green. Pick the shade you want from the colour options when ordering.

How long does it actually take to heat food?

Typically 45 minutes to an hour for a meal like chicken and mashed potatoes. For a properly hot lunch, plugging in about two and a half hours ahead is safer. Frozen food takes longer still.

Can I put the whole thing in the dishwasher?

No. The inner container and lid are dishwasher safe. The warming base holds the heating element, so wipe it with a damp cloth.

Will it keep food warm all day, or does it need to stay plugged in?

It warms only while plugged in, so leave it connected until you eat. It's a heater, not an insulated flask.

Is it big enough for a full meal, or just a snack?

It holds 20 ounces, one generous personal portion of soup, pasta or leftovers. The size is right for a work lunch, but it won't feed two.

On Video

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The Verdict

4.6Out of 5

The Crock-Pot 20-ounce lunch box works like a pocket-sized slow cooker. Plug it in mid-morning and one portion of soup, leftovers or oatmeal is hot and moist by lunch. It's slow, taking 45 minutes to over two hours depending on the food, it holds one serving, and it runs from a wall socket. The cord storage is fiddly and the rim paint can wear, but the heating is reliable and it gets you out of the microwave queue.

Who should buy it

  • Teachers with short lunch breaks
  • Office workers without a microwave
  • Anyone who eats the same size of lunch at the same desk
  • Gift buyers after something useful and good-looking

Buy it if you can plug in well before lunch and only need one portion. If you want food hot in minutes, or need to heat lunch in a car, look at a different warmer.

Check price on Amazon

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