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Mar 18, 2008 06:42 AM

Kosher salt - what is it?

I often see this as an ingredient but can someone please tell me what it actually is.

It's not something I've ever come across (at least not by that name). I've even asked at my nearby Jewish grocers (which obviously has many products approved by the Beth Din) but got no more than a blank look.

I presume it must be something different from "ordinary" salt but I can't think what it might be.


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  1. One big difference here in the U.S. is that it doesn't have iodine it, the way U.S. "regular" table salt does. Also, although you can get a "fine grain" kosher salt, it often comes in larger grains - that's what I use to make gravlax, for example. - this is interesting as well - and explains that one has to substitute 2 T of kosher salt for 1 T of table salt.

    I only use kosher salt and sea salts.

    11 Replies
    1. re: MMRuth

      Not all regular salt (i.e. non-kosher) is iodized. Sea salt often has a lot of naturally occurring iodine. Personally, I can't stand the stuff. To me it tastes like a medicine cabinet smells. I like Diamond Crystal plain table salt, and the kosher version for cooking.

      1. re: phofiend

        Actually, all salt is sea salt.

          1. re: Gio

            Um, no, unless you go back millions of years. Much salt is mined.

            1. re: phofiend

              there was a cool show on discovery a little while back about salt mining -- in the area of salt lake city, utah?

              1. re: alkapal

                I was in Poland a few years ago and went to the Wieliczka salt mine, which has been worked continuously since the fourteenth century. Incredible! Beautiful and frightening. For days I could taste salt every time I took a deep breath.

            2. re: Gio

              Thanks everyone! I really don't know why I posted that. I was really on my way to saying something else. A burp in my brain, I guess.....

              1. re: Gio

                Morton's table salt is produced in Rittman Ohio by evaporating brine extracted from deep injection wells.

            3. re: MMRuth

              Never seen "fine grain" kosher salt. Why would there be such a thing?

              1. re: C. Hamster

                The reason I buy it is that it doesn't have Iodine - I use it regularly.


                1. re: MMRuth

                  That's what I use, too. It's easy to work with and tastes better.

                  But it's not fine, it's coarse. Quite coarse, as evidenced by the sub ratio between it and table salt.

                  I don't see why there would be "fine" kosher salt. It's for koshering meat.

            4. It's coarse salt....that's it....

              1 Reply
              1. re: Pollo

                But isn't it correct that it doesn't have iodine in it?

                Interestingly - it's not listed here:


              2. It shouldn't be hard to find at all. Look on your grocery shelves for a box a bit larger than a small cereal box. I can even choose from several brands at my local stores.

                1 Reply
                1. re: irishnyc

                  Harters is in the UK - it may not be as readily available there.

                2. I'm surprised the Jewish grocers did not know what Kosher salt is because it is used to "kosher meats" as required by Jewish law. This involves coating the meat with salt to draw the blood to the surface and, meats bought at a kosher butcher must be "Koshered" by that method in order to be kosher when served.

                  Kosher salt produced by Morton contains sodium ferrocyanide as a free-flow agent.

                  1. look for this box next to the "regular" salt in most any grocery store: