Davar Gush:

• Halachos;


• What;


• Mixture;


• Bishul;


• Kashering.

See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠⁠⁠