Is there any way to eat a tuna wrap from a non-kosher restaurant, if I have full access to see their ingredients and packaging?

  • 1
    There may still be a prohibition of Maris Ayin + You do not know what the dishes were used for prior. Commented Feb 10, 2011 at 18:03
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    @Gershon Gold, re: dishes - but it's all cold Commented Feb 10, 2011 at 18:16
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    Well what if they used a knife for shrimp, then onions then tuna? Commented Feb 10, 2011 at 19:11
  • what about dishes being washed together? Commented Feb 11, 2011 at 13:45
  • @Gershon, no onions Commented Feb 11, 2011 at 13:52

2 Answers 2


The question is premised on an unlikely scenario. Did they let you into the kitchen and show you the industrial containers of tuna, mayo, oil, salt, pepper? Did you see them remove the wrap from the packaging? Did they microwave it first to soften it? Was the microwave clean? Did they check the lettuce? Did they cut the tomato without using the ham slicer? Was the work surface clean? Was the knife, spoon and fork new or cleaned properly? Was the mixing bowl clean?

If yes to all of the above, well then you basically made the sandwich yourself with your own kosher components. What's the problem?

Perhaps you meant to ask, "may I cut cold kosher food with a clean non-kosher knife?" The answer is: no, you may not, but post-facto it is OK. See Shulchan Aruch Yoreh Deah 121:7 for the right way to do it: by kashering the knife first.

Of course, ask your local rabbi first.

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    If you are stuck somewhere without food, there are leniencies. Ask your rabbi. You can also try asking them for new silverware, explaining that you only eat kosher food.
    – Barry
    Commented Feb 11, 2011 at 17:47

Not recommended. What an amazing coincidence that you are asking this question in Adar, when we will read in the Megilla how Achashverosh served a Glatt Kosher party to the jews and they deserved to die for joining in the party. Let us learn the lessons of Purim that not everything that is seemingly Kosher is recommended.

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    Why...........? Commented Feb 11, 2011 at 13:52
  • see comments above Commented Feb 11, 2011 at 14:36
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    That seems a bit hyperbolic for this question. I think the technical problems here should be sufficient to recommend against consuming such a product. Other than perhaps the problem of how it looks, there are no extra-technical issues that aren't present in any non-Jewish supermarket. And the how-it-looks problem is certainly not comparable to attending a party that celebrates (in part) the downfall of the Jews, desecrates the holy vessels, etc.
    – Isaac Moses
    Commented Feb 11, 2011 at 15:42
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    Proving (without sources) that at least one thing which is kosher is not recommended says nothing about this case. Why do you say it isn't recommended when odds seem to dictate that nothing is wrong with it?
    – Double AA
    Commented Dec 6, 2012 at 6:17
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    I'm curious, where is that Megilla story from?
    – andrewmh20
    Commented Mar 21, 2013 at 2:08

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