Add a little pure soy sauce.
Raw silk is a material for silk textiles.
生（なま） is the everyday reading for 'raw/fresh' used in daily speech (生野菜, 生放送), while 生（き） is the more formal, technical reading limited to a smaller set of compounds like 生糸 and 生一本.
cloth; fabric; material; texture · dough; batter · inherent quality; true character; true colours · unprocessed base material; unglazed pottery; uncoated metal · bare skin; skin with no make-up
parasite
pure; genuine; trueborn; natural-born
overserious; deeply sincere; very earnest
birthstone
raw silk thread
virgin; innocent young woman
pure sake; undiluted sake
traditional sake yeast starter; oldest surviving traditional sake-making method
The reading き is the native Japanese reading (kun'yomi) of the kanji 生, which broadly relates to life, birth, and rawness. This specific usage as a prefix/noun for 'pure' or 'raw' is derived from the core meaning of 'unprocessed' or 'in its natural state'.
raw lacquer; unrefined lacquer tree sap
greensand (olive-green sandstone) · green sand; molding sand
unsized paper
raw silk fabric
crude Japan wax
green coffee bean; unroasted coffee bean
unadulterated vinegar; pure vinegar
Jataka tales; stories of Buddha's previous lives
100% buckwheat soba; pure buckwheat noodles
straightforwardness; honesty; purity