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The best-selling kitchen item on Amazon at the moment is a little device you’d use constantly to cart soups and pasta to and from work for lunch.

The 470ml Thermos Stainless King Vacuum Insulated Food Jar is available in three colours and is as much as 51 per cent off its usual price if you opt for a red or silver colourway ($22.06).

The midnight blue tone is slightly dearer at $22.80.

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The brand has long been known for its vacuum insulation technology which ensures maximum temperature retention throughout the day - or at least until lunchtime.

It keeps the contents hot for up to nine hours or cold for up to 14 hours with a durable stainless steel interior and exterior.

The extra wide mouth is easy to fill, serve from and clean so you won’t be making a sloppy mess over the countertop as you attempt to pour your food into another bowl.

Best of all it still remains cool to the touch when filled with hot liquids and is sweat-proof with cold liquids.

And at just over $22-a-piece it’s certainly a steal during the sale.

“I work outside and I bought this item for taking soup and stew on those cold winter days,” one Australian woman said.

“Now I have only used it once for soup at this point in time and it worked perfectly. My soup was nice and hot and it stayed sealed inside my lunch bag. The added spoon is great as I don’t end up with a half dozen spoons in the bottom of my bag. I recommend this to anyone that wants healthy hot food at work.”

“Absolutely fantastic! I’ve used it for soups and pasta so far and it keeps warm for hours! Definitely recommend putting boiling/hot water in it first for 10 minutes to pre warm it as food definitely keeps warmer for longer that way, but 100% recommend,” said another.

“Since winter started I have been using this religiously to store my hot soup and sometimes even my hot drinks to bring to work,” said a third.

The original price of the Thermos is $44.99.