Rabbi Moishe Sternbuch, leader and Vice President of the Rabbinical Court of the Edah HaChareidis in Yerushalayim, recently ruled that electronic cigarettes require kosher supervision all year round as it contains an ingredient that generates a good taste which affects the e-cigarette’s steam and its taste is felt by the pallet.  E-cigarettes also pose a Chometz issue on Pesach and should be avoided.