Two appliances and crews from Aylesbury and one from Hertfordshire attended, along with an officer.
The kitchen of a two-storey commercial building was smoke logged when they arrived.
The firefighters used:
- Two sets of breathing apparatus
- One hose reel jet
- A positive pressure ventilation fan
- A thermal imaging camera
They isolated the electricity and gas supplies.
The kitchen was five per cent damaged by fire and 100 per cent damaged by smoke.