Kli Rishon and Kli Sheini:

• Basic halacha;


• Exceptions;


• Defanos Mekariros;


• Irui kli rishon;


• Tunnel Pasteurizer.

See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠⁠