In a Facebook statement, the bakery confirmed there were no suspicious circumstances surrounding the start of the fire at the pasty factory, and an electrical fault had been identified as the cause.
The blaze was isolated to a small part of the building, although structual damage has made some areas are unsafe.
Eight fire crews from around the county fought through the night to bring the flames under control.
The statement on Rowe's Cornish Bakery Facebook, read:
"We have robust contingency plans in place for such incidents and are working around the clock to implement these plans.
"Such unity has seen us reach our 65th anniversary and will continue to see us through the next 65 years.
"We will be back producing our award winning pasties in the coming days"
The company confirmed that no members of staff were hurt in the blaze.
In a previous statement, WC Rowe expressed their thanks towards the fire crews. They said:
“Rowe’s Bakery would like to express their gratitude to the fire crews who attended the incident. Without their efforts the results could have been far worse.