One of the most traditional and prestigious products of Emilia is Aceto Balsamico Tradizionale (traditional balsamic vinegar). This precious and expensive vinegar is made only in Reggio-Emilia and Modena. The latter is usually considered to craft the most prestigious vinegars of the two. Aceto Balsamico Tradizionale is made through a very long, laborious and patient process that is food preparation turned into art form.