noun, takes する, takes genitive case の

  1. cooking for oneself, cooking one's own food, doing one's own cooking, making food oneself, self-catering.
  2. scanning a book or magazine to create an ebook by oneself.

Variations

Pronunciation Kanji Kana Is Common
自炊 じすい

Contained Kanji Breakdown

oneself
ジ みずか.ら おの.ずから (2nd, N4)
dot, tick or dot radical (no. 3)
チュ (Kentei 1)
eye, class, look
め モク ボク (1st, N4)
cook, boil
た.く スイ い (8th, N1)
fire
ひ カ ほ- (1st, N5)
to divide
person
ひと ニン ジン (1st, N5)
lack, gap, fail
ケツ か.ける ケン (4th, N3)
knife, wrapping enclosure(勹) variant