Freixo canned olives belong to the Negrinha variety, produced in northeastern Portugal, near the Spanish-Portuguese border. Traditionally grown without the use of any pesticides and herbicides, these olives are carefully selected and hand-picked.
After they are harvested, these olives are separated according to their size and optionally pitted, after which they are brined. Freixo olives are either green or black, but their color can range from dark yellow to purple after canning. They are used in a broad range of traditional Portuguese dishes and drinks.