![Cup, microwaved many many times before, but this time heating 3oz of water caused this : r/whatisthisthing Cup, microwaved many many times before, but this time heating 3oz of water caused this : r/whatisthisthing](https://i.redd.it/sutn2avqsub21.jpg)
Cup, microwaved many many times before, but this time heating 3oz of water caused this : r/whatisthisthing
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T-WARE Ceramic Mug, Microwave Safe Mug, Ceramic Coffee Cup, 16 Oz Coffee Mug for Office and Home, Single, Light Orange: Glassware: Amazon.com.au
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Glossy Ceramic Coffee Mug, Tea Cup for Office and Home, 18 oz, Dishwasher and Microwave Safe, 1 Pack (Royal Blue): Cups, Mugs & Saucers: Amazon.com.au
![artisane, terra firma coffee mugs, Ceramic Coffee Mug, 12oz Coffee Mug, Hand Crafted Mug, Unique Coffee Mugs, Dishwasher & Microwave safe : Amazon.com.au: Kitchen & Dining artisane, terra firma coffee mugs, Ceramic Coffee Mug, 12oz Coffee Mug, Hand Crafted Mug, Unique Coffee Mugs, Dishwasher & Microwave safe : Amazon.com.au: Kitchen & Dining](https://m.media-amazon.com/images/I/710Ai-J1KcL._AC_UF894,1000_QL80_.jpg)
artisane, terra firma coffee mugs, Ceramic Coffee Mug, 12oz Coffee Mug, Hand Crafted Mug, Unique Coffee Mugs, Dishwasher & Microwave safe : Amazon.com.au: Kitchen & Dining
![T-WARE Ceramic Mugs, Microwave Safe Mugs, Ceramic Coffee Cups, 16 Oz Coffee Mugs for Office and Home, Set of 2, Beige: Glassware: Amazon.com.au T-WARE Ceramic Mugs, Microwave Safe Mugs, Ceramic Coffee Cups, 16 Oz Coffee Mugs for Office and Home, Set of 2, Beige: Glassware: Amazon.com.au](https://m.media-amazon.com/images/I/51ZrYDZCYTL._AC_UF894,1000_QL80_.jpg)
T-WARE Ceramic Mugs, Microwave Safe Mugs, Ceramic Coffee Cups, 16 Oz Coffee Mugs for Office and Home, Set of 2, Beige: Glassware: Amazon.com.au
![Mora Ceramic Large Latte Mug Set of 4, 16oz - Microwavable, Porcelain Coffee Cups With Big Handle - Modern, Boho, Unique Style For Any Kitchen. Microwave Safe Stoneware - Vanilla White : Mora Ceramic Large Latte Mug Set of 4, 16oz - Microwavable, Porcelain Coffee Cups With Big Handle - Modern, Boho, Unique Style For Any Kitchen. Microwave Safe Stoneware - Vanilla White :](https://m.media-amazon.com/images/I/51fCt-NVRBL._AC_UF894,1000_QL80_.jpg)
Mora Ceramic Large Latte Mug Set of 4, 16oz - Microwavable, Porcelain Coffee Cups With Big Handle - Modern, Boho, Unique Style For Any Kitchen. Microwave Safe Stoneware - Vanilla White :
![Is ceramic microwave safe? How to check if a ceramic dish can go in the microwave? - Cupstograms.net Is ceramic microwave safe? How to check if a ceramic dish can go in the microwave? - Cupstograms.net](https://cupstograms.net/wp-content/uploads/2023/01/KC-7-4.jpg)
Is ceramic microwave safe? How to check if a ceramic dish can go in the microwave? - Cupstograms.net
![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?auto=webp&s=5b4fab7ea6f97c9b65983ebbbb4038008faa7ac2)
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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