Is peanut oil in Fujian the same as peanut oil in other provinces?

It's different. Peanut oil in Fujian province is different from peanut oil in other provinces, because different manufacturers use different formulas, raw materials and processing technologies. For example, Fujian province will use Fujian peanuts, and foreign factories will also use their local peanuts. Different factories also use different pressing techniques, so peanut oil products produced in different places are different.