One often repeated argument against the acceptance of Murex techailes is that "the Gedolim" don't accept it. Certainly there are many Gedolim who considered the issue, at least superficially, and did not start using the Murex. Often one Gadol would rely on another, for example Rav Chaim Kannievski (as can be seen in his responses in Dass Note, "כל רבותי לא החזיקו מזה"). My question is, who are these Gedolim who do not to accept this for their own reasons, without falling back on the opinions of others, that lesser rabbonim then supported themselves upon?

Note that it isn't always obvious who is really relying on others. Most responses from Rav Chaim would indicate, from lack of evidence to the contrary, that this was his independent conclusion. It is only from his more detailed response that we see not like that. But as far as we know, whose rejection is his own?

  • ,dupe ..........
    – kouty
    Commented Aug 11, 2022 at 4:53
  • related: Why is techeles not universally accepted?
    – mbloch
    Commented Aug 11, 2022 at 5:19
  • Rav Shternbuch in many teshuvos. Although someone told me he was chozer...who knows.
    – robev
    Commented Aug 11, 2022 at 5:41
  • I personally spoke to Rav Shternbach twelve years ago, between his second and third teshovos, and he told me explicitly that "if we had techailes we would wear it. The reason we don't is because the tzadikei hador have not been moreh."
    – Mordechai
    Commented Aug 11, 2022 at 9:49
  • I haven't asked him, but those who have say that Rav Moshe Heinemann shlit"a is convinced that Murex dye is not techeiles.
    – MichoelR
    Commented Aug 12, 2022 at 22:31

2 Answers 2


Rav Elyashiv in Kovetz Teshuvos. Rav Asher Weiss in Shu"t Minchas Asher chelek 2 simanim 2-6.


Rabbi Yisroel Reisman (a Rosh Yeshiva in Torah Vodaath) in this video.

  • I believe that Rav Reisman's opinion is his own, but I doubt (perhaps without justification) that many other rabbanim relay upon him for this.
    – Mordechai
    Commented Aug 11, 2022 at 10:16

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