Do MKR contestants cook in their own kitchen?

Could you please clarify for me: are the contestants participating in the MKR (MasterChef Australia) cooking in their own private kitchens? Or do they have a designated cooking space within the show's filming location? I'm curious to know if the cooking environment they're working in is something personal to them or if it's a standardized setup provided by the production team. It would be interesting to understand how this aspect of the competition might affect their cooking styles and the overall experience. Thank you for your assistance in clarifying this matter.