The Railway Cafe in Bratch Lane was broken into earlier this year – and suffered another incident this week.
Bosses say it happened between Sunday evening and Tuesday morning. Police are investigating.
The crooks tried to crow bar open the back door to the kitchen, before fleeing the scene after being disturbed.
Owners of the cafe have urged anyone who was nearby and saw anything – or suspects anything – to please get in touch.
A spokesman for the cafe said: "I don’t know what they were going to achieve as nothing is left inside the cafe at night.
"All they’ve managed to do is make a mess and cost me money to replace what they have damaged."