![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
![2 Minutes Mug cake using LG Convection Microwave Oven | How to bake cake in Conv. Microwave Oven - YouTube 2 Minutes Mug cake using LG Convection Microwave Oven | How to bake cake in Conv. Microwave Oven - YouTube](https://i.ytimg.com/vi/ckmHf4xvp3s/maxresdefault.jpg)
2 Minutes Mug cake using LG Convection Microwave Oven | How to bake cake in Conv. Microwave Oven - YouTube
![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://i.redd.it/t2wy30qpkihz.jpg)
I put my coffee cup in the microwave and it scorched right on the 'Do Not Microwave' warning. : r/mildlyinteresting
![microwave - Accidentally microwaved stainless steel travel coffee mug. Still safe to use? - Seasoned Advice microwave - Accidentally microwaved stainless steel travel coffee mug. Still safe to use? - Seasoned Advice](https://i.stack.imgur.com/HHthM.jpg)