"Some Vinegars Contain a Big Dose of Lead"
"In a tradition dating back to medieval times, growers in Modena, Italy, are deep into the grape harvest, the first step in making their famed balsamic vinegar. ...Thousands of miles away, in California, signs in grocery stores warn shoppers about exposure to a dangerous metal in many balsamic and red wine vinegars. Although the amount of lead in vinegar is small, experts say regularly consuming it may pose a risk, particularly to children."