NGS Style Manual‎ > ‎- H -‎ > ‎

hand-

If not in Webster's, hyphenate combinations of this word when they are used as an adjective or a verb:
            hand-mix (verb)
            hand-mixed (adjective)
            hand mixer (noun)

            hand-sew (verb)
            hand-sewn (adjective)
but     hand sewer (noun)