Only use surrounding space in a way consistent with the appliance's clearances and ventilation instructions. A convenient gap may serve a purpose beyond storage.
What the observation means
Stored items can obstruct airflow, contact hot surfaces or prevent access. Plastic and wooden boards may be unsuitable near heat even if they do not touch a burner.
A useful next step
Keep required gaps clear and move loose items only when safe. Report heat marks or melting before continued use. Do not fit a tight filler panel or seal the gap to stop objects falling into a space that the cooker requires.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.