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![8OZ Reusable Coffee Cup with Leak Proof Lid and Non-Slip Sleeve, Dishwasher and microwave Safe Coffee Mug : Amazon.co.uk: Home & Kitchen 8OZ Reusable Coffee Cup with Leak Proof Lid and Non-Slip Sleeve, Dishwasher and microwave Safe Coffee Mug : Amazon.co.uk: Home & Kitchen](https://m.media-amazon.com/images/I/71n3BkesT8L.jpg)
8OZ Reusable Coffee Cup with Leak Proof Lid and Non-Slip Sleeve, Dishwasher and microwave Safe Coffee Mug : Amazon.co.uk: Home & Kitchen
![I feel like this is a good one. I put this ceramic mug in the microwave sometimes and overtime this black sludge appears in the outside? What is it and why do I feel like this is a good one. I put this ceramic mug in the microwave sometimes and overtime this black sludge appears in the outside? What is it and why do](https://preview.redd.it/omkr9m7r1ld01.jpg?width=640&crop=smart&auto=webp&s=78cf0b4e014d28417e156ba1ef725fd743a98b87)
I feel like this is a good one. I put this ceramic mug in the microwave sometimes and overtime this black sludge appears in the outside? What is it and why do
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UTOQIA Coffee Mug Tea Cup Coffee Cup Coffee Mug And Saucer Set,Kiln-changing Mug Ceramic Coffee Mug-Microwave-For Cold/Hot Drinks-280ML Mug Cup Coffee Mugs (Color : D, Size : Mug) : Amazon.co.uk: Home &
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NOVA CERAMICS Travel Mug - Travel Coffee Mug – Iced Coffee Cup Unique to Go Mug – Microwave & Dishwasher Safe Coffee Pink Tumbler - Gifts for Women Men Him Her –
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Cteahrow Large 21 OZ/600ml Ceramic Coffee Mugs, Large Capacity Mug with Handle,Extra Large Tea Cup,Dishwasher Microwave Safe,for Office and Home (Blue) : Amazon.co.uk: Home & Kitchen
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2pcs Ceramic Coffee Mug, Blue Big Tea Cup for Office and Home, Dishwasher and Microwave Safe 150ml | Fruugo UK
![I put my coffee cup in the microwave and it scorched right on the 'Do Not Microwave' warning. : r/mildlyinteresting I put my coffee cup in the microwave and it scorched right on the 'Do Not Microwave' warning. : r/mildlyinteresting](https://preview.redd.it/t2wy30qpkihz.jpg?width=640&crop=smart&auto=webp&s=2a0d622d4f405ea2d317fd37c6a965aad7236ed8)
I put my coffee cup in the microwave and it scorched right on the 'Do Not Microwave' warning. : r/mildlyinteresting
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Hasense Large Coffee Mug, 20 oz Ceramic Coffee Cups for Office and Camping, Big Coffee Mug for Latte Coffee Tea Soup as Friend Gifts, Dishwasher and Microwave Safe, 1 PCS (Blue) :
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