The fire was reported in the back of the store around 8:25 p.m., according to the Lake Stevens Fire Department.
Fire crews arrived within three minutes of the call and began fighting the blaze, which was kept to the rear of the building, Fire Marshal Robert Marshall said.
The store is in the 2700 block Hartford Drive. The storage area contained two compressors for refrigeration, Marshall said.
The cause remained under investigation Wednesday. It was not considered suspicious.
More Local News Headlines
Everett City Council puts courthouse deal on hold over parking questions Monroe skatepark will undergo $240,000 worth of improvements Overhaul of county's emergency dispatch software by year's end Locals fondly recall author Ann Rule Man sought in Marysville shooting Voters to decide on Marysville fireworks ban Life in prison for killer of Seattle police officer who was from Marysville Volunteer brings troubled felines to inmates, who help tame them
Our new comment system is not supported in IE 7. Please upgrade your browser here.