It is also extremely mild and non-astringent, and is always used in weak liquors.
astringent as·trin·gent (ə-strĭn'jənt)
Causing contraction of tissues, arrest of secretion, or control of bleeding. n.
A substance or preparation, such as alum, that draws together or constricts body tissues and is effective in stopping the flow of blood or other secretions.