Thermos Freezer Blocks - Pack of 3
920/5181£16.00
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About this product
The Thermos Freezer Blocks keep your lunch kit or cool box chilled all day without the mess of melting ice. This pack of three boards slots into any Thermos cooler to hold cold air longer, whether you're packing school lunches, heading to a festival, or taking snacks on a family weekend away. Made from durable polypropylene, they withstand repeated freezing and thawing without cracking or leaking. Just pop them in the freezer overnight and they're ready to keep food and drinks cold for hours.
Each block fits neatly alongside sandwiches and drinks, maximising the chill without taking up too much space. The set of three means you can rotate them use one today while the others refreeze, so you always have a cold pack ready. The solid construction handles daily use, and the smooth surface wipes clean easily. They come with a one-year manufacturer's guarantee, giving you reliable cooling year after year for packed lunches, picnics or camping trips.
- Multiple sizes freezer boards.
- Made of polypropylene.
- Size: H32.5, W25, D1.5cm.
- Weight 1.4kg.
- Manufacturer's 1 year guarantee.
4.6
190 reviews
93%
Recommended this product
Customers Say
Slim, effective freezer blocks keep food cool for hours in cool bags or boxes. Large block size may not fit all containers; smaller blocks are versatile and portable. Durable and good value overall.
An AI generated summary based on recent customer reviews
Each review is verified as authentic by our independent third party and we only publish reviews from customers or Argos Testers who have purchased or used the item. Customers are incentivised to submit product reviews as part of a prize draw.
worked very good
i bought this to go with the freezer bag
nocchi
Good price and good product
I don't know why but from the reviews, these ice packs in a cooler box, I stupidly expected my frozen food to remain, well, frozen! My chilled food stayed cold, I had milk, yoghurt, chicken, they all stayed cold while I drove 450 miles over 7.5 hours and when I unpacked them in the fridge on arrival, nothing went off. My frozen food stayed cold but defrosted, it was all vegan though so I managed to refreeze it and no one got food poisoning ;) :)
Croutons
3 blocks are useful
Nice and thin. Advertised with the cool box but large block too large to fit at bottom of box. 2 smaller blocks perfect.
Taylor50, 65 or over
Excellent but check your sizes
These slimline freezer blocks will help extend the cooling of cool boxes or bags. They are effective as any of these are, my only advice is to double check the sizing details. The larger one is pretty big, it fits my portable fridge but would be too big for my standard cool box.
Steve, 65 or over
Worked well
Surprised how large the biggest freezer pack was. Used successfully transporting food for self catering holiday, pleased with performance.
Jillian, 55 - 64
Great product but incomplete
Great product but only received two pieces rather than the three shown.
EP, 45 - 54, London
Wrong sizes
Quite good although the biggest is too big for freezer.
S
Very handy
These are fantastic, very handy for keeping food cool.
T
Great value
Excellent… effective and efficient
Steve, 65 or over, Essex
Very good source of coolth!
Bought to go in an igloo cool box. Keep my chilled food cool very well
Neil, 55 - 64, Deal Kent
Hello MOB,
After checking with our supplier, they have advised for the Thermos Freezer Blocks - Pack of 3: ''The liquid within ice packs is 97.5% water, 1.5% blue dye and 1% acticide (this prevents bacteria growth).''
Thank you for using Q and A.
Hello there,
Thermos Freezer Blocks - Pack of 3
I can confirm these are reusable.
Thank you for using Argos Q&A
We purchased these and they lasted approx 12-14 hours. Probably would have gone longer. We placed them in an ice compact rucksack. All food was fresh
Sounds to me these items have never been tested. If they had been, then the manufacturer should supply the relevant information. Because they did not, I would not trust them.
Hello fly4534,
The supplier has advised the following for the Thermos Freeze Boards Triple Pack:
We are unable to give times on these as there are many factors that can cause the time they stay cold to vary. These include:
- Length of time they've been frozen before use.
- Ambient temperature of the freeze boards.
- Ambient temperature of the container and the environment it's in.
- How and where the boards are stored/used when in use.
- The level of insulation of the container they're being used in.
I hope this helps.
Thank you for using Q&A.
Hi Taz,
These will keep items cool, but will not freeze them.
Thank you for using Q&A.
Gem
Hi Rodgey,
Thanks for your question.
The 400g boards have the dimensions of 14.0x1.5x25.0cm each and the 800g board has the dimensions of 25.0x1.5x32.5 cm.
I hope this helps. :)
Hi Pan Ann,
I have investigated this for you and can confirm the size of the Thermos Freeze Boards are the 400g boards have the dimensions of 14.0x1.5x25.0cm each and the 800g board has the dimensions of 25.0x1.5x32.5 cm.
Hope this helps?
Thank you for using Q&A
The small print
*Prices correct as displayed but are subject to change.
The customer and brand answers you’ll see above are submitted independently. As we don’t review these answers, we can’t take responsibility for anything they may say. The responses from Argos colleagues are accurate at the time of publishing. For the latest info, you should check the product page.