No. Treat an alarm as a safety warning and follow emergency guidance, moving to fresh air and obtaining appropriate help.
What the observation means
Carbon monoxide cannot be judged by smell. Do not assume ordinary cooking vapour explains an alarm without proper assessment. A gas appliance's flame appearance is not a substitute for combustion testing.
A useful next step
In Great Britain, contact the gas emergency service on 0800 111 999 from a safe place. Seek urgent medical help for concerning symptoms. Do not disable the alarm or continue using the hob to see whether it sounds again.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.