How long does it keep food hot?

The stated heat preservation time is about 2 to 3 hours. Eat within that window for properly hot food; it is not an all-day jar.

The listing does not state leak-proofing. Carry it upright in a bag rather than on its side.

Can I put it in the dishwasher or microwave?

No dishwasher or microwave use is stated. Hand wash the stainless interior and PP shell, and keep the jar out of the microwave.

One 500 ml food jar and one plastic spoon. The jar measures about 15 cm tall and the spoon about 11 cm.

Is 500 ml enough for a meal?

It holds a standard single portion of soup, stew or leftovers, roughly what a large bowl takes. Big appetites may want more.

How does it compare with a Thermos or Zojirushi jar?

Those keep food hot far longer, often 6 hours or more, and usually seal better. This jar is simpler and lighter but trades away long heat retention.

Stainless steel Thermos Flask Bottle Hot Food Lunch Vacuum Insulated Soup Jar

Best price now

$5.79at WalmartChecked 11 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

Stainless steel Thermos Flask Bottle Hot Food Lunch Vacuum Insulated Soup Jar

Best price now

$5.79at WalmartChecked 11 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Lowest price today: $5.79 at Walmart (checked Nov 13, 2026).

Our take on the Stainless steel Thermos Flask Bottle Hot Food Lunch Vacuum Insulated Soup Jar

A 500 ml vacuum-insulated food jar in 304 stainless steel with a PP outer shell and a plastic spoon that stores with it. The wide, rounded "big belly" body holds soup, stew or hot lunch. Its stated heat retention is only about 2 to 3 hours, well short of the 6 to 12 hours premium jars like Thermos or Zojirushi claim, so it suits a morning-to-noon gap rather than an all-day keep-warm. It is a budget option: simple, light and easy to open, but not a jar for long shifts or cold-weather commutes.

Best forPacked lunches eaten within a few hoursSoup, stew and leftovers for school or officeShoppers who want a simple, light jarShort trips and errands

Pros

304 stainless steel interior with PP shell
500 ml holds a full portion of soup or stew
Wide body is easy to fill and eat from
Comes with a plastic spoon
Light and simple to carry

Cons

Heat retention stated at only about 2 to 3 hours
Plastic spoon feels basic
No mention of leak-proofing or a folding spout
Single 500 ml size only

Stainless steel Thermos Flask Bottle Hot Food Lunch Vacuum Insulated Soup Jar prices at every store

WalmartNew
In stockSold by KaiXunRui
$5.79+ $3.99 shippingChecked 11 h ago
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Stainless steel Thermos Flask Bottle Hot Food Lunch Vacuum Insulated Soup Jar price history

$15.59$5.79

Oct 30Nov 13

Lowest price we've seen: $5.79 on Nov 13 at Walmart; highest $15.59 on Oct 30. Tracked across 2 stores since Oct 30.

About the Stainless steel Thermos Flask Bottle Hot Food Lunch Vacuum Insulated Soup Jar

This is a vacuum insulated food jar for carrying hot food such as soup. It has a big belly cup shape and holds 500 ml. The jar is made of PP and 304 stainless steel.

It keeps food warm and fresh for about 2 to 3 hours. A plastic spoon is included.

Material: Jar: PP + 304 stainless steel; spoon: plastic
Capacity: 500 ml
Jar size: 15 cm / 5.9 in
Spoon size: 11 cm / 4.3 in
Style: Big belly cup
Function: Keeps food warm and fresh
Heat retention: About 2-3 hours
In the box: 1 x food jar, 1 x spoon

Questions and answers

How long does it keep food hot?: The stated heat preservation time is about 2 to 3 hours. Eat within that window for properly hot food; it is not an all-day jar.
Is it leak-proof?: The listing does not state leak-proofing. Carry it upright in a bag rather than on its side.
Can I put it in the dishwasher or microwave?: No dishwasher or microwave use is stated. Hand wash the stainless interior and PP shell, and keep the jar out of the microwave.
What is included?: One 500 ml food jar and one plastic spoon. The jar measures about 15 cm tall and the spoon about 11 cm.
Is 500 ml enough for a meal?: It holds a standard single portion of soup, stew or leftovers, roughly what a large bowl takes. Big appetites may want more.
How does it compare with a Thermos or Zojirushi jar?: Those keep food hot far longer, often 6 hours or more, and usually seal better. This jar is simpler and lighter but trades away long heat retention.
Where is the Stainless steel Thermos Flask Bottle Hot Food Lunch Vacuum Insulated Soup Jar cheapest?: At Walmart, for $5.79, as of our latest check.
Where can I buy the Stainless steel Thermos Flask Bottle Hot Food Lunch Vacuum Insulated Soup Jar?: 2 stores we checked sell it, including Walmart, Amazon.