Reference for Chullin 70:14

תנאי היא

This applies only to common food kept in the cleanness proper to consecrated things!<span class="x" onmousemove="('comment',' Toh. II, 6. This Mishnah clearly teaches that even common food kept in the cleanness proper to consecrated food (and not only real consecrated food) which was unclean in the third degree renders consecrated food unclean in the fourth degree, contra R. Isaac.');">⁵</span>

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