Leaving blood in the animal after
      slaughter
Question

                Some meat factories in the
      western countries deliberately do not drain the blood from the animal
      after slaughter, so that it will weigh more and they will thus make more
      money from it. What is the ruling on eating this meat?
Praise be to Allah.We
      put this question to Shaykh ‘Abd-Allaah ibn Jibreen, may Allaah preserve
      him, who answered as follows:
 Leaving
      the blood in the animal after slaughter and not draining it is haraam and
      is not permitted. Allaah says (interpretation of the meaning):
“Forbidden to you (for food) are: Al-Maytah (dead
      animals – cattle-beast not slaughtered), blood…” [al-Maa’idah 5:3]
And
      Allaah knows best.