to remove a quantity of liquid from a larger amount
The next step is to draw the wine off into a clean barrel.
phrasedraw off draw off sth • draw sth off to remove some liquid from somewhere, especially by using a pipe or a tube: Farmers draw off water from the river and use it for their crops.Doctor Staples drew off some of the fluid from the wound.
draw off
To take some fluid from something. A noun or pronoun can be used between "draw" and "off." I had to draw off some of the water so that the glass didn't overflow.
draw something off (from something)
to remove a portion of a liquid from something; to cause something to flow from something. The steward drew some wine off from the cask.He drew off some wine.