The terms Boquerón and Anchovy are often confused, depending on the area, the same product is called in one way or another.
In the northern area, Anchovy is the name given to the product that has been prepared using the salting process, whereas the word Boquerón is used when it is prepared using vinegar.
In the case of this reference, when the anchovies are cleaned, they are placed in baths or maceration vats with vinegar and water for marinating, then we start to call it Boquerón.
Finally, it is bathed in extra virgin olive oil.