First of all, we’d like to state that in Islam, purification is of high esteem to the extent that the Prophet (peace and blessings be upon him) regarded it as a half of one’s iman (faith), saying, “Purification is half of the Faith.” It goes without saying that Islam is a religion which pays attention to the cleanliness, decency, and the good appearance. Cleanliness and purity of food is one of the aspects that Islam cares about.
Dr. Marawan Shahin, Professor of Hadith and its Sciences, Faculty of Usul Ad-Din (Theology), Al-Azhar Univ. states: “It is sufficient to wash slaughtered meat or minced meat before cooking it in order to remove traces of blood on it. What is haram (prohibited) is to eat blood poured forth.
`A’ishah (May Allah be pleased with her) is reported to have said that they used to see traces of yellow (blood) on cooked meat. So, what is required is moderation in washing slaughtered meat or minced meat before cooking it.