found some info...
Many provinces in Canada have deposit refund systems in place for alcoholic and non-alcoholic beverage containers: glass, plastic, aluminum, and tetrapak containers have deposit requirements in various provinces. Deposits range from 5¢ to 40¢ per unit.
Ontario's system of deposit refunds for beer bottles, through "The Beer Store" (The Beer Store is owned by three Ontario brewers: Labatt, Molson and Sleeman), has close to a 100% return rate. The bottles can be cleaned and reused 15 to 20 times. Effective February 5, 2007, Ontario's container deposit applies to wine and spirit, in addition to beer containers. However, even though spirits may only be purchased at government run stores (LCBO) and wine may only be purchased there and at specialty wine shops and directly from wineries, these bottles may only be returned for deposit refund at The Beer Store.