Modern Ovens and kashrus

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  • #601335
    popa_bar_abba
    Participant

    What do we treat our ovens as? Are they a tanur? Is the ??? ????? Is it like cooking under a ?????

    #839964
    oomis
    Participant

    That reminds me of a Henny Youngman joke. “My wife says to me, ‘I want you to take me somewhere I’ve never been before.’ So I took her to the kitchen.”

    #839965
    yitayningwut
    Participant

    It is ??? ???? and not the same as ????.

    R’ Moshe holds that our ovens are the same as a machavas. My rav and rosh chabura both hold there is no issue of zeiah in our ovens at all. A guy in Lakewood put out a sefer saying that you do not need to burn out an oven between milk and meat, and that possibly you can cook them both together uncovered. In R’ Belsky’s haskama he goes to town on the guy saying you can’t uproot the minhag that the women always had to burn out ovens, simply by your pilpul. The guy asked R’ Shlomo Miller who said he doesn’t remember there ever being such a minhag (I think this is in the footnotes, but I heard it from my rosh chabura). Also, they say R’ Aharon held there was no problem.

    #839966
    hello99
    Participant

    I would agree with Yitay mi’Ikar HaDin, but l’Chatchila I recommend people should wait 24 hours and run it on high for a while. Certainly, the rack the pan is placed on must be cleaned.

    #839967
    Jothar
    Member

    hello99, my rav agrees with you. So we wait 24 hours and self-clean. Our toaster oven is on the fritz, so we have been self-cleaning more than usual of late.

    #839968
    popa_bar_abba
    Participant

    So, according to the StarK website, you can bake one after another with no problem, but you cannot cook in liquid one after another. That implies you need to kasher it if you cook liquid.

    This would imply they are treating it as a machabas, and only assuming it is hizia if there is liquid.

    Another minhag I have heard is to always just wait 24 hours.

    This would only make sense if we were mesupak if it was a machabas or a tanur, and were being machmir at least to be good b’dieved.

    Hello99: It sounds like you are mesupak if your burning it is really libun, and that is why you want 24 hours?

    #839969
    yitayningwut
    Participant

    They are going like R’ Moshe.

    #839970
    hello99
    Participant

    In general, I think the best way to analyze your query regarding modern ovens is not to compare to labels in Shulchan Aruch and cases mentioned there. Rather, I would break down the question like this.

    1) YD 108/Reicha/Tanur-Not relevant for many reasons. Our ovens, especially American ones, are large and have ventilation. Additionally, there is no Reicha consecutively, and it is highly unlikely and not recommended to cook Kosher and non-Kosher or meat and dairy simultaneously in the same oven.

    3) Mamashus- Pieces of caked on grease could fall from the roof of the oven onto the new food, and if they are edible there would be a problem. However, this can easily be solved by a simple cleaning, and no Kashering is necessary for this concern. More problematic is the possibility that the grates/racks the pans are placed on could have residue on them (Bliyos would not be problematic due to Shtei Kedeiros). A thorough cleaning would solve this issue. A simpler solution is to place a sheet of aluminum foil on the rack and under the pan. This wat, any possible Bliyos will only penetrate the foil, but cannot continue in to the pan due to Shtei Kedairos.

    Still, as a general behavior, I cannot recommend using the same oven for Milchigs and Fleishigs, both uncovered. However, minimum precautions are sufficient.

    This is just off the cuff, I’m not holding in the Sugya at the moment.

    #839971
    hello99
    Participant

    was this helpful?

    #839972
    popa_bar_abba
    Participant

    Yes. Sorry for not responding. I don’t do YW during the day anymore.

    I think it is. And you are correct, the way to approach it really is not to assume it fits the box of any of the cases discussed.

    #839973
    cherrybim
    Participant

    Wow! I don’t think you could do better even if you were holding in the sugya.

    #839974
    hello99
    Participant

    Thanks for the compliment. I would have cited names and precise sources.

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