Hot Stuff Mug


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Availability: Sold out |


On first glance, this nifty colour-changing mug looks like an ordinary black receptacle for all your hot drink needs, but pour in some hot water and a remarkable change occurs. As the mug fills with hot water it gradually reveals the rather self-explanatory message, 'Hot Stuff'. Which is exactly what you'll feel like when you're drinking your morning coffee from it.

Not only that, but it'll also let you know if your drink's gone cold, and it makes a great gift for someone in your office.


  • Colour-changing mug that displays the words 'Hot Stuff'
  • Great for seeing if your hot drink is still hot
  • Perfect gift for office colleagues
  • Suitable for ages 8 years +


  • H: 9.6 W: 12.5 D: 8.2 cm

Product Details



Delivery & Returns

How long will it take to arrive?

Please check the stock availability notice on your item when placing your order. This item is: Sold out

Please remember to add postal time (2-3 working days) to obtain a complete estimate of delivery to your door.

How will I know it has been sent?

You will receive an email to confirm when your item has been sent.

You can also check the status of your order and individual items by accessing My Account details and following the prompts.

Please allow 10 working days from dispatch of your order before notifying us of any late deliveries.

It may be advisable to check with your neighbours to see if a parcel has been left with them, check any outhouses you might have where it may be left if it cannot fit through your letterbox and contact your local sorting office to see if the item has been returned to the depot as undelivered and awaiting collection.

If I'm not completely happy with my item?

Please see our returns policy.

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Customer Reviews




(13 Reviews)

  • 5    6
  • 4    5
  • 3    0
  • 2    1
  • 1    1

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showing 1 to 13 of 13 reviews :
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23 December 2013 by

I liked this product very much , it made a great present for my friend, they loved it

Hot STuff Mug

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18 December 2013 by

I bought this to give my student nephew for his Christmas. It changes colour with hot liquids so appeals to anyone who gets bored with the usual mugs.

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18 October 2013 by

Excellent quality! I was really pleased with the mug, works perfectly and is really good value!

hot stuff mugs

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28 January 2013 by

Sturdy - does what it says on the tin - mugs.

Bobbly cup

Total :


31 December 2012 by

The Hot Stuff Mug was okay after a few times using the cup but washed it up on the 4th time and the cup went a bit bobbly with bubbles like I've burnt it. It's still useable.

Review of Hot Stuff Mug

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23 August 2012 by

I was getting the I Love Spreadsheet mug for a colleague and saw the Hot Stuff one. I needed a new mug so treated myself to this one. We have good laughs when someone offers to make me tea then comes back and says 'your cup was black, wasn't it? It confuses them.

Does what it says!

Total :


5 May 2012 by

The Hot Stuff Mug is a good sized mug. It does exactly what it says and changes to read "Hot Stuff" when hot water is added!

Doesn't last............

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29 March 2012 by

Works great but within a couple of weeks of use the heat activated shrink wrapping is cracking and falling apart, rubbish.

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22 March 2012 by

I love this colour changing Hot Stuff mug. It's so good I had to buy two!

Briliant buy!

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7 March 2012 by

I love my new Hot Stuff Mug. When my colleague offered to make me a cuppa, she was so surprised when it changed colour and the lettering 'HOT STUFF' came up. We now have HOT STUFF and I LOVE SPREADSHEETS sitting side by side on our desks!

hot stuff mug

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25 February 2012 by

Great mug and works really well, except they sent me one saying ..."this cup has been stolen" and not hot stuff! lol.....

Hot Stuff Mug

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28 December 2011 by

Silly, but it works! The mug created much interest and amusement.

Very nice mug

Total :


5 February 2011 by

Fantastic service and well packaged. This mug works exactly as described, changing within seconds of hot water being added, rising up untill the whole mug has changed. Once changed, the 'Hot Stuff' lettering is very clear. Nice sized mug too.

Hot Stuff Mug

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Hot Stuff Mug