Some are cooked, but some are raw, but even if they are raw, you don't have to heat them for too long, because frozen foods are processed, just follow the instructions.

General frozen food is divided into raw food and cooked food, such as frozen buns have fermented and non-fermented two categories, fermented buns in the frozen before it is heated to cooked, non-fermented buns in the frozen before it is not heated, and there is the product packaging will be labeled as raw or cooked, you can look at the packaging.