Kitniyos II

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There is a rabbi in Israel who is making the news by saying that Ashkenazim in Israel are allowed to eat kitniyos on Pesach.* Two years ago, I explained why his main points are wrong (link). I’d like to explain briefly why the main leading authority in the past five centuries to argue similarly, R. Ya’akov Emden, would also not permit it nowadays. Nor, for that matter, did he permit it in his day.

In Responsa Mor U-Ketzi’ah (Orach Chaim 453), R. Ya’akov Emden points out that there are a few technical problems with permitting kitniyos to Ashkenazim:
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  1. You are not allowed to permit a practice that is technically permissible but has been knowingly accepted as forbidden (Shulchan Arukh, Yoreh De’ah 214:1). The community that has accepted it is bound by a vow to observe the prohibition.
  2. The court that permits it will be called by the people overly permissive, which is not appropriate (cf. Avodah Zarah 37a; Mishneh Torah, Hilkhos Mamrim 2:8).
  3. The rulings of a court may only be annulled by a court that is greater in wisdom and number (Mishneh Torah, Hilkhos Mamrim 2:2).

That is why he and his father would only permit kitniyos if the other great authorities of their generation would agree with them. This would solve problems 2 & 3. Problem 1 is solved because kitniyos causes problems: poor people do not have enough to eat and end up having to bake so many extra matzos to feed their families that they cannot be sufficiently careful in preventing them from rising and becoming chametz. Since revoking this custom will prevent violations, there is no need for a court that is greater in wisdom and number.

It is important to note that at no time did R. Ya’akov Emden or his father (R. Tzvi Ashkenazi) receive the approval of their contemporaries in permitting kitniyos. Neither does any scholar today.

Additionally, the reality has changed since then. With the widespread availability of machine-made matzos (Streit’s is selling online for $2.99 a box – link), this is not a custom that leads to violations. Regardless, the Maharatz Chajes (Minchas Kena’s in Kol Sifrei Maharatz Chajes, vol. 2 pp. 627-630) disputes the idea that since this custom leads to violations it can be annulled without a court that is greater in wisdom and number. Because this custom spread so widely, argues the Maharatz Chajes, it does not fall under the loophole that R. Ya’akov Emden was attempting to apply.

Note that this has nothing to do with adding to the custom and prohibiting more things. I am not in favor of that.

* A reader provided these links: I, II (PDF), III, IV

About Gil Student

Rabbi Gil Student is the Editor of, a leading website on Orthodox Jewish scholarly subjects, and the Book Editor of the Orthodox Union’s Jewish Action magazine. He writes a popular column on issues of Jewish law and thought featured in newspapers and magazines, including The Jewish Link, The Jewish Echo and The Vues. In the past, he has served as the President of the small Jewish publisher Yashar Books and as the Managing Editor of OU Press. Rabbi Student has served two terms on the Executive Committee of the Rabbinical Council of America and currently serves as the Director of the Halacha Commission of the Rabbinical Alliance of America. He serves on the Editorial Boards of Jewish Action magazine, the Journal of Halacha and Contemporary Society and the Achieve Journal of Behavioral Health, Religion & Community, as well as the Board of OU Press. He has published five English books, the most recent titled Search Engine volume 2: Finding Meaning in Jewish Texts -- Jewish Leadership, and served as the American editor for Morasha Kehillat Yaakov: Essays in Honour of Chief Rabbi Lord Jonathan Sacks.


  1. What about increasing the unity of the Jewish people?
    Doesn’t that count for anything? Apparently not.

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