Polar Gear 400ml Insulated Food Flask with Spoon

Polar Gear’s 400ml insulated food flask is a compact stainless-steel container for soup and other packed meals, with a spoon held by a silicone band. Its small capacity suits a modest lunch portion, while the maker claims up to six hours of hot or cold retention when preheated or precooled as directed.

At a glance

400ml capacity for a single modest portion of soup, porridge or another packed meal.
The maker claims hot or cold contents can be kept at temperature for up to six hours, with preheating or precooling required.
Wide opening supports eating from the flask, and the included spoon is held by a silicone band.
Screw-lock lid and double-wall insulation are described as leakproof and condensation resistant when the lid is properly closed.

Price

£12.28Save 28%

Reference price: ~~£16.99~~

Price checked: 12 Nov 2026

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Often bought together

Polar Gear 400ml Insulated Food Flask For Hot Food & Soup Flask + Spoon | Double-wall insulation, keeps meals fresh, leakproo

£14.99

Pros and cons

Pros

Compact capacity and wide mouth make it practical for portable portions and eating directly from the container.
The spoon is carried on the flask, reducing the need to pack separate cutlery.
Stainless-steel construction and a claimed six-hour hot or cold retention window support packed meals away from home.

Cons

Hand washing is required, so it is less convenient than a dishwasher-safe food container.
At 400ml, it may be too small for buyers who want a larger meal portion.

Technical specifications

14 specifications

Identity
Brand	Polar Gear
Capacity	400 Millilitres
Colour	Black
Shape	Cylindrical

Dimensions and installation
Dimensions	10L x 9W x 14.7H centimetres
Weight listed	220 Grams

Materials and protection
Material listed	Stainless Steel
Material feature	BPA Free

Use and care
Closure	Screw Lock
Airtightness	Airtight
Dishwasher safe	No
Care instructions	Hand wash only, not dishwasher safe. Clean the inside through the wide neck with hot soapy water. Take extra care when handling hot contents.
Recommended uses	Packed Meals, Picnics, Travel
Special features	Insulated, Leak Resistant, Stackable, Sturdy

What to know before buying

The six-hour hot or cold claim depends on preheating or precooling the flask before filling. The listing also says the spoon is held by a silicone band, but its package inventory is not provided, so confirm the selected listing includes it.

Who is it for?

A good fit for

People packing a modest soup, porridge or meal portion for school, work or travel.
Buyers who value a wide opening and a spoon carried with the flask.

Less suited to

Anyone who needs a large-capacity lunch container.
Buyers who require dishwasher or microwave use.

Polar Gear 400ml Insulated Food Flask with Spoon · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 1,313 ratings

5 stars71%71%
4 stars17%17%
3 stars6%6%
2 stars2%2%
1 star4%4%

Customer feedback highlights meals staying hot, the compact size and wide opening, ease of cleaning, and usefulness for school lunches. These reported benefits fit the flask’s 400ml capacity and wide-neck design, while the maker’s six-hour retention claim remains a listing claim rather than a customer guarantee. Durability feedback is mixed, including reports of a lid breaking within three weeks, so buyers who prioritise long-term lid reliability should weigh that concern.

Positive themes

Customers report good heat retention and find the compact size and wide opening convenient for eating.
Customers appreciate ease of cleaning and usefulness for school lunches.

Mixed feedback

Durability feedback is mixed, with some customers reporting that the lid broke within three weeks of use.

Frequently asked questions

How long does the flask claim to keep food hot or cold?

The listing claims up to six hours for hot or cold contents. It specifies preheating with hot water or precooling with ice-cold water before use.

Can it go in the dishwasher or microwave?

No. The listing says it is hand-wash only and not microwaveable. It recommends cleaning the inside through the wide neck with hot soapy water.

Does it include a spoon?

The product title and feature text claim a spoon is included and held by a silicone band. The supplied package inventory is empty, so confirm the contents on the selected listing.

Is 400ml enough for a full meal?

The flask holds 400ml, which the listing presents as suitable for a tin of soup. Whether that is enough depends on your portion size.