By Rabbi Yair Hoffman for 5tjt.com First there was the icebox.� Then came the expensive refrigerators with the poison gas.� And then came freon based refrigerators.� And the world changed for the better. This Thursday before Shavuos, we will all be making an Eiruv Tavshilim.� Generally speaking, we use an egg and a Matzah for … Continue reading Should New Developments Affect the Way We Do Our Eruv Tavshilin?