Yes, unless otherwise mentioned in a product page, Nagatani-en's Iga-yaki donabe is oven-safe in general. Because each donabe was baked in an extremely high heat kiln twice in the production process, Iga-yaki donabe is highly heat-resistent. For safety, when you use Nagatani-en's donabe in the oven, we suggest the maximum temperature to be set no more than 600°F (300°C) degrees. Nagatani-en's Iga-yaki donabe is also fine to use over grill, but please be aware that such a heat source could make the bottom and outside of the donabe much darker easily.