The Siena edition of Italy’s national daily La Nazione has reported that the investigation of Brunello producers has expanded and that more wineries have been implicated in the inquiry. According to the report, published today, more wine has been impounded for testing. Authorities continue to question whether or not the wines are made with 100% Sangiovese grapes (as required) or not. The report does not, however, name the new wineries under investigation. Author of the report, Laura Valdesi, also claims that authorities are testing wines other than Brunello produced in Montalcino.