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What would be the status of the coffee maker cone shown below if it were to be used to make a cup of coffee in a dairy mug? Would it become dairy? Would it remain parve?

Here's how it works. It holds a coffee filter, into which coffee grinds are placed, and over which hot water (approximately 165-180°F) is poured, and it has a small hole at the bottom, through which the coffee-enriched water drips into the cup below.

Does it make a difference if the cup was used, and for what, within the previous 24 hours?

cropped picture; original's link still saved below

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  • judaism.stackexchange.com/questions/17479/…
    – Double AA ♦
    Oct 23, 2012 at 1:00
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    Also, this seems a lot like an actual question. Why did you choose dairy in the question? I know I don't need to remind you to speak with your personal rabbi for a psak, but perhaps you can generalize the question a little.
    – Double AA ♦
    Oct 23, 2012 at 1:08
  • Hmm, I guess I'm just confused about the sum of all the parts of the equation. There's steam, there's heat, there's N"T Bar N"T, etc.
    – Seth J
    Oct 23, 2012 at 1:28
  • It seems like a valid question to me. I'm not the OP, but enough people take their coffee with cream that the dairy choice didn't give me pause.
    – Monica Cellio
    Oct 23, 2012 at 3:33
  • Is this even slightly better?
    – Seth J
    Oct 23, 2012 at 4:26

1 Answer 1

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Obviously CYLOR, but at least in principle I find it hard to say that the cone would actually become milchig. In a simpler case of a pareve spoon that was inserted into a clean milchig ben yomo pot that is a Kli Rishon (that now has hot pareve inside) the halacha mi'ikar hadin is that it remains pareve though many say it is preferable to treat it as milchig (source, based on Shach YD 94:15). However, in the case in question the mug is not a Kli Rishon. Probably the status would be that the first few drops that fall in while the hot water is being poured from the kettle is considered Irui Kli Rishon Benifsak Hakiluach, and the remaining water falling from the cone would be Irui Kli Sheini. Even Irui Kli Rishon Bnifsak Kiluach is not able to be Maflik Umavlia Ke'echad; that is to remove the milk absorbed in the mug and to cause it to be absorbed in the cone (explained here).

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  • Michoel, thanks. What about Zei'ah getting on it? What about using it for a second cup without washing it in between?
    – Seth J
    Oct 23, 2012 at 23:55
  • @SethJ If there wouldn't be zei'ah getting on it that is yad soledes there would for sure be no problem. My answer is assuming there is, it can't be worse than iruy bnifask hakiluach.
    – Michoel
    Oct 24, 2012 at 0:00
  • But even if it's not YS"B, it is still dairy, and it still settles on the cone, doesn't it? Or do we assume that it goes past it unless we see it accumulate? This is part of what confuses me about this subject.
    – Seth J
    Oct 24, 2012 at 0:12
  • @SethJ That zei'ah would be na"t bar na"t of milchig so if there wouldn't be shishim in the next cup vs. the zei'ah which is unlikely it would be a machlokes mechaber rama. (However, if you would wash the cone in YS"B water after, that might bring it closer to being considered milchig).
    – Michoel
    Oct 24, 2012 at 0:23

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