The industrial kitchen for Mornington ice cream shop Patti’s and Cream has been broken into several times.
The kitchen is in separate premises in the Zingari Richmond Football Club building.
Patti’s and Cream owner Olive Tabor said the experience had cost her money, halted her business and left her feeling anxious.
The trouble began during Alert Level 4 in August, when the lockbox holding all the keys for the building was stolen.
She believed it was a simple act of vandalism, but six weeks later $2500 worth of electronics and equipment was stolen from the kitchen.
The thieves had used the keys to enter the building.
Cameras were installed around the building and all valuables were removed.
Every external door in the building had the locks changed except one which had a deadbolt on the inside.
The deadbolt was not locked completely and the offenders spent a long time forcing it open, she said.
Camera footage showed two people heading to where the electronics were previously stored, leading her to believe they were the same offenders.
With little to steal, the pair left with nothing more than a fuel can and a phone charger.
The third incident occurred last Saturday, when thieves broke in to a storage container and stole 11 dozen cheese rolls and about 40 ice cream tacos.
Upon reviewing the footage, Ms Tabor saw the thieves approach the camera and tape over the lens, before removing it about 30 minutes later.
She had taken all the footage to police, but was frustrated with a lack of action, she said.
After each break-in police had visited the site, but she felt like it was a "low priority" for them.
The incidents made her question whether investing in the small business had been a good idea, Ms Tabor said.
A police spokeswoman said a forensic examination was continuing and the offenders were yet to be identified.
