Shalom!
If i've been added additional egg (with blood in it) to 3 another (clean) eggs in the same bowl, can I separate clean eggs from the mixture? Or I have discard all mixture? thanks
Answer:
it is fine to discard the blood part, and keep the clean parts.
Sources:
In principle, the halachah today (where eggs are not fertilized) is that it is permitted to discard the blood spot, and keep the rest. See Shulchan Aruch, Yoreh De'ah 66:7; Tur 66, Pischei Teshuva 3, Chochmas Adam 29:12. However, Rav Moshe Feinstein ruled that one should preferably discard the egg (Iggros Moshe Yoreh De'ah 1:36), where this is possible. Certainly, however, the other eggs, and the mixture, is permitted once the blood is removed.