Caring for Cream
The matte unglazed "bare" parts of the pots will stain and can be cleaned with baking soda, vinegar, soap, etc. I wash my ware in the dishwasher and have had no problems, even the bare bottomed dishes and cups!
You can warm in the oven, but no quick temperature changes.
Easy peasy cleaning! It's pretty hard to stain these dark beauties. My dark bottom pots get rubbed with olive oil from time to time just to ward off the dry look they get after washing. These are also food safe, should not be soaked, gentle cycle in the dishwasher, or HAND wash if you want to HAND it down.
Microwave: Yes, but they do get hot. Oven: YUP No quick temperature changes!