Although unused, I washed it once. I bought it because I was drawn to how cute it was, but I was afraid of damaging it and it can't be used in the microwave, so I never used it and ended up putting it away. The black part on the underside of the rim (which looks like a chip) is there from the beginning. Those familiar with enamelware will know that it's likely where it was hung during the glazing process. It's a shame to leave it unused, so I hope someone will use it.