Chatichah Hariuyah Lehiskabed (Bitul and Blios #36 - Shulchan Aruch YD 101:1)
Rabbi Dovid Cohen
Chatichah Hariuyah Lehiskabed (חתיכה הראויה להתכבד) : Basic halachos; Definition; Raw meat; Blends (part is part is not, only together). See seforim by Rabbi Cohen at www.kashrushalacha.com