The Collaborative International Dictionary
Rack vintage
Rack \Rack\, v. t. [Cf. OF. vin raqu['e] wine squeezed from the dregs of the grapes.] To draw off from the lees or sediment, as wine.
It is in common practice to draw wine or beer from the
lees (which we call racking), whereby it will clarify
much the sooner.
--Bacon.
Rack vintage, wine cleansed and drawn from the lees.
--Cowell.