On Shabbat we abstain from 39 general categories of creative work. In this class we discuss the prohibition of cooking on Shabbat. Learn what constitutes the biblical ‘melachah’ (prohibited work) of cooking on Shabbat (called bishul), and its underlying principles and practical application. This includes defining the level of heat that’s capable of cooking (for solids and for liquids), and the different levels of ‘vessels’ (keli rishon, keli sheni etc.).