About Boston Warehouse Founded in 1974, Boston Warehouse began as a distributor of fine European imports to U.S. retailers. By 1980, the company was creating their own products in-house. Through innovative designs and meeting consumers ever evolving tastes and needs, Boston Warehouse is now widely known for their presence in retail markets and for creating all sorts of charming resin and earthenware home goods. * Made of earthenware * Dishwasher-safe