This week we continued with the sugyos of shehiya, and dealt with the shayla of someone who brings shabbos in early and has food with out a blech on the fire but by the time shkiya comes it will be machal Ben drusai, do we go with when shabbos starts for the person or with shkiya. Although it is a machlokes we follow the opinion of Reb Shlomo Zalman that says you go with shkiya, therefore if the food is ready by shkiya one would not need the flame to be covered mikar hadin.