Torath Kohanim / Zevachim material on earthenware vs. copper vessels (regular TT sources for the chatas vessel rules).
וכלי חרס אשר תבשל בו ישבר — כלי חרס שנבלע בו מטעם החטאת טעון שבירה. ואם בכלי נחשת בשלה מרק ושטף במים — כלי מתכת די לו במריקה ושטיפה. כל זכר בכהנים יאכל אתה קדש קדשים היא — נאכלת לזכרי כהונה במקום קדוש.
Ucheli cheres asher tevushal bo yishaver — keli cheres shenivla bo mita’am hachatat ta’un shevirah. Ve’im bichli nechoshet bushalah morak veshutaf bamayim — keli matechet dai lo bemerikah ushetifah. Kol zachar bakohanim yochal osah kodesh kodashim hi — ne’echelet lezichrei kehunah bemakom kadosh.
“An earthenware vessel in which it is boiled shall be broken” — an earthenware vessel that has absorbed the taste of the chatas must be broken. “And if it is boiled in a copper vessel, it shall be scoured and rinsed in water” — a metal vessel requires only scouring and rinsing. “Every male among the Kohanim may eat it; it is most holy” — it is eaten by male Kohanim in a holy place.
Custom — vessel rules differentiated by material.
An earthenware vessel used for cooking the chatas must be broken; a copper vessel is scoured and rinsed. The flesh is eaten by male Kohanim and is most holy.