Dewey Lucero, owner of Lucero Olive Oil, at 1012 First St. in Napa, says he lost about 90 percent of his inventory - about 500 bottles of olive oil and balsamic vinegar that retail for $20 a bottle.
Lucero lives in Sacramento, and has a store in that area as well as in Oregon. He says he just opened his Napa store in October.
Friends started calling him Sunday morning about the damage, and when he got to the store at 1 p.m., he immediately had to begin repairing the damage.
Lucero says the hardest part of the cleanup is "sucking up the olive oil" from the floors.
He also bought of big containers of kitty litter to help absorb the oil.
It is unknown whether there is structural damage to the building, but he does know that he will not be able to open for business tomorrow, Lucero said.
In the downtown Napa area, people are walking around taking pictures as all the damage becomes an attraction.