The permitted timing depends on the model's cooling and water-return process. Follow the display and manual rather than assuming the container is cool because it sits outside the cavity.
What the observation means
Hot water or steam may still be present after the cooking stage ends. Some appliances perform a drain or return sequence before asking for the container to be emptied. Interrupting it can create a confusing message or spill.
A useful next step
Wait for the documented prompt and use the prescribed handling method. If the container is stuck, do not lever it out. Record whether the programme completed normally and any warning shown, then request advice before forcing or dismantling the reservoir assembly.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.