Di Olivas 617 S Main St, Saint Charles, MO63301 Di Olivas is an olive oil and balsamic vinegar emporium. The location in St. Charles opened March 1, 2011. Di Olivas has…More more than fifteen types of balsamic vinegar and many types of extra virgin olive oil. The store has a bottle recycling program as well. If customers bring a clean and dry bottle to the store, it will be refilled and the customer will get $1 off the purchase of the next bottle.