How to Use a Keurig Without Destroying it in the Mikva


keurigBy Rabbi Baruch Fried

In this week’s Parsha [31:21-23] we are introduced to the requirement of purifying utensils acquired from a non-Jew. The Gemara in Avoda Zara 75B tells us that each “kashering” must include immersion in a Kosher Mikva. Although the process is fairly straightforward, modern application can be quite complex.

What could be wrong…?

Over the past few years, the coffee industry has been transformed with the advent of the Keurig. These single serve coffee packets [K-cups] and their brewers can almost instantly provide a cup of always fresh perfectly brewed hot coffee, in an endless variety of flavors. For the true coffee lover, it’s the answer to most of life’s problems.

As with every new fad, the Observant Jew has more on his mind. While the various agencies have successfully taken on the kashrus angle, some other areas are left to the consumer. Chief among them is the issue of tevila. The Torah mandates that a Jew’s utensils used in food preparation [provided they actually come in contact with food] must be immersed in a Kosher Mikva1. The Mishna [ibid] tells us that this includes a pot used for heating water. As such it would seem that a Jewish owned Keurig brewer would require immersion prior to use.

The problem however, is that the said machines generally have a computer chip which most technicians fear would get destroyed if immersed in water, rendering it useless (and voiding the warrantee). This leaves us with the difficult decision of giving up this advantageous machine altogether, or finding some other solution.

Suggested solutions

The first thing to clarify is whether or not it really needs tevila. The Torah only enumerates metals in the chiyuv of tevila, and the Rabbanan added glass2. Plastic is customarily not toveled. In general the Keurig [i.e. the parts that touch water] is almost entirely plastic, with the exception of the two pins that puncture the coffee packet, and an internal metal bowl that actually heats the water. Since, however, those metal parts are intrinsic to the preparation and come in contact with the water, according to most poskim the entire machine is considered to be of a material that needs tevila.

Another consideration is that it needs electricity to function, which requires a connection to an outlet at all times. Therefore some Poskim suggest that we can consider it attached to the ground and thus not obligated to be toveled. It is very difficult to rely on this for two reasons. First, many early Poskim are of the opinion that attaching a utensil to the ground does not absolve its chiyuv tevila. Secondly, many Poskim think it outright ridiculous that plugging in an appliance would be considered attaching it to the ground [see Shevet HaLevi Vol 2, 57].

When there is no solution…

A different line of reasoning contends that since it cannot be immersed without breaking it, that itself absolves you from doing so. There are two ways to understand this leniency. One, since it is a positive mitzva, it is similar to all positive mitzvos that an “Onais” [lit. Coerced] is exempt. For instance, we find that someone whose tzitzis tear in a public domain on Shabbos may continue wearing them for the time being because they cannot be repaired anyway on Shabbos. However that proof is self-contradictory, for we only allow wearing the tzitzis while he is in a public domain. As soon as a private place is reached he must remove them, despite his inability to repair them till after Shabbos.

A second understanding is that any utensil whose immersion will be ineffective does not need tevila. The precedent for this is the Rema [YD 120:11] who rules that a utensil owned by a partnership of a Jew and non-Jew is exempt from tevila. His source is the sefer Issur VeHeter, who explains that since it will remain [partially] a non-Jewish utensil, tevila (which is in essence to purify it from its previous non-Jewish ownership) will always be ineffective and thus exempt. Based on this, some suggest that if the utensil will break by immersing it, it too will be exempt. However the comparison is definitely disputatious3, for while in the case of Rema the tevila is ineffective, in the case of the Keurig the tevila is just fine. It’s the machine that is ineffective.

Almost but not quite…

This does however lead us to a possible solution, and that is to sell a share of the machine to a non-Jew4, rendering him a partner and thus gaining the heter of the Rema. Although this seems like a great idea, there are various earlier teshuvos discussing utensils that were too big to be toveled, and we don’t find this solution given. The question is why? Some present day Poskim suggest that even the Rema never meant that you may do so l’chatchila, rather if you already bought it together with the gentile then by default you are exempt.

Ok, so let’s go a step further and sell the whole thing to a non-Jew, and just borrow it back indefinitely. Certainly everyone agrees that something belonging to a non-Jew is exempt even l’chatchila? The catch there is that by borrowing it back for that long it would seem to fall under the category of a non-Jew’s collateral entrusted indefinitely to a Jew. In this instance the Gemara tells us it must be toveled despite its non-Jewish ownership. In fact even if lent for a mere 30 days the Taz already requires tevila, if only miderabanan. [Although we do find this idea of sale to a non-Jew to exempt from tevila in earlier sources, it is generally only used together with other factors].
A way out…

There is one solution that seems to be accepted by all poskim, though it does seem unconventional. That would be to have the machine dismantled or broken to an extent that it cannot be used at all without a professional repair. At that point it is Halachically not a Kli altogether. It would then be repaired or re-assembled by a Jewish technician, thereby regarded to be a Jewish made utensil. A utensil made by a Jew and sold to a Jew [without non-Jewish ownership in between] is certainly exempt from tevila. Not surprisingly, “kosherizing” Keurigs has already become a business in some Frum communities. On the other hand, since this process is quite complicated both technically and halachically, many Rabbanim prefer the “partnership” option mentioned above. As always, check with your Rav for guidance.

1 Note, since tevilas keilim is min hatorah, the mikva must have all the requirements for a tevila de’oraysa, which some mikvaos used for other purposes do not have. One should check with their local Rav.

2 Although glass is a rabbinic chiyuv, as far as the bracha recited it is the same as metal.

3 Real word, look it up.

4 This would need to be done with a halachically acceptable kinyan, see CH”M 194.


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  1. David even if you dip it in the mikva the water doesn’t get to the metal bowl. This machine works is with a pump, and therefore the water doesn’t reach the bowl unless it is plugged in. Which makes it impossible to toivel.
    I say live without it, and many poskim say the same.

  2. I heard many years ago this aitza. Remove the wire or plug, which renders it unusable. then reattach it.NIGMAR MILACHTO OLL YEDAY YISROEL. NO TEVILAH NEEDED!!

  3. Two points, one practical and one halachic:
    You might hear one or two people say they have toiveled a Keurig without damage. Being familiar with numerous cases of people who have done so, this is far from the truth in the vast majority of cases. Indeed, it can be said with certainty that one who chooses to do is in clear violation of the issur of Baal Tashchis. Should one truly wish to avoid the shailoh, the way to do so would be to purchase a different device, not to engage in wanton destruction.

    As for the halacha: The author presents clear, concise and accurate information. His maskana of “kosherization”, when performed properly, is certainly the most preferable route. However, there may be one potential issue that was missed. While the kli in its entirety can truly not be immersed, it is important to note that the “pins” are metal and insofar as they are funnels, would require tevila as per the din of “mashpech”. These pins are indeed immersible. Aside from that which the lower pin is generally removable with ease, in most models one can simply immerse a portion of the Keurig, the portion where the pins are located. Though generally an entire kli must be immersed at once, in this case, the pins which serve a completely different function than the heating apparatus could be considered an independent kli [think of an assembly line with numerous stages]. As such, immersing the entire pin would suffice. The fact that the Keurig is blocking the water from touching parts of the pin would seemingly not constitute a chatzitza as per the mishna and halacha of “yodos hakeilim she’osid likatzitzon” [comparison here only to the chatzitza angle]. Not a definitive fact, but certainly a potential issue…

    One more note: Just for the record, the Avnei Nezer does indeed use the “tzitzis” heter in cases similar to ours. R’ Shlomo Zalman uses the “mechubar” argument li’halacha, albeit only in conjunction with other rationale.

    Thank you for keeping the tzibbur informed!

  4. Re: Doesn’t Work (#5) – You’re argument doesn’t hold water. Rebuild does not need to reach all parts for it to work. It’s called Bais Hastorim/ Balua. When a person goes to the mikva, does the water touch his innards? The internal metal bowl is merely to confer metal designation on entire kli.