The Collaborative International Dictionary of English v.0.48:

Creamery \Cream"er*y\ (-?r-?), n.; pl. Creameries (-?z). [CF.
   F. cr?meric.]
   1. A place where butter and cheese are made, or where milk
      and cream are put up in cans for market.
      [1913 Webster]

   2. A place or apparatus in which milk is set for raising
      cream.
      [1913 Webster]

   3. An establishment where cream is sold.
      [1913 Webster]

WordNet (r) 3.0 (2006):

creamery
    n 1: a workplace where dairy products (butter and cheese etc.)
         are produced or sold