Temprature indicator plastic cups
The color changes depending on your drink’s heat
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The color changes depending on your drink’s heat
Better would be to make this from that marinatex stuff which is plastic made from fish skins. https://www.marinatex.co.uk/
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(20 upvotes)Better to just get a mug that indicates the temperature, no?
Bad for the environment but you can get these smart lids that indicate the heat of the drink. Maybe just feel the thing instead of over-engineer everything to be super convenient though, huh America?