Curdy

A good sherris-sack hath a twofold operation in it. It ascends me into the brain; dries me there all the foolish and dull and curdy vapours which environ it; makes it apprehensive, quick, forgetive, full of nimble fiery.

The oil by degrees gets covered with a curdy mass, which after some time settles to the bottom, while itself becomes limpid and colorless.