I have kept this item unused since I purchased it. It is microwave and oven safe. The unevenness in the glaze is original to the piece, and there are individual differences. You can see a protrusion in the sixth photo. Looking closely at the surface, you can see iron spots appearing here and there. There are also differences in the size of the particles, and shades of color within the gray, so the more you look at it, the more richness of expression appears, and you can feel the interesting qualities of the pottery. The gray color also makes food look good and is a versatile color. Orange, yellow, green, and the colors of vegetable soups look great on it. Tapenade has a rustic feel unique to pottery, while also being microwave and oven safe. Size: W137/D110/H52/260cc - Color: Gray - Quantity: Set of 2 - Brand: Tapenade - Material: Ceramic I look forward to your comments if you are interested. Instant purchase is welcome! #studio m' #studium #sobokai #sobokai #Tapenade