#4411: Who Decides What's Kosher? The Tzohar Fight

Why Israel just reversed recognition of Tzohar's kosher certification — and how we got to a world of competing hechshers.

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In July 2026, Israel's outgoing government reversed its 2023 recognition of Tzohar's kosher certification, re-establishing the Chief Rabbinate's monopoly over kashrut in Israel. This isn't a simple religious dispute — it's a political and economic battle over who controls the word "kosher."

Tzohar, founded in 2002 by Rabbi David Stav and other religious Zionist rabbis, positioned itself as a transparent, accessible alternative to the Rabbinate's bureaucracy. On kashrut specifically, Tzohar doesn't claim to be more lenient on halakhic standards. Instead, it offers a different supervision model: certifying restaurants that keep kosher kitchens but stay open on Shabbat, for example. The Rabbinate refuses such certifications not because the food isn't kosher, but because it uses its certification power as a lever for broader religious compliance. Tzohar argues its job is to answer one question: is the food kosher?

This fight reflects a deeper transformation in kosher certification. Before the 1960s and 1970s, kosher was largely binary — a local rabbi vouched for food prepared at home or bought from known vendors. The rise of processed food changed everything. The Orthodox Union created the first national hechsher brand, solving the problem of certifying food made in distant factories. But that opened the door to competitors, each needing to differentiate itself. The result: a credentialing arms race where stringency became a proxy for reliability, creating a marketplace of competing certifications that often don't trust each other.

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#4411: Who Decides What's Kosher? The Tzohar Fight

Corn
So Daniel sent us this one — and you can hear the frustration in how he wrote it. The outgoing Israeli government tried to reinstate the Chief Rabbinate's monopoly over kosher certification by revoking recognition of Tzohar. The popular press calls Tzohar "liberal kosher," but that label misses the real story. Daniel's asking us to look at three things: what Tzohar actually is and what it offers differently, how the Jewish world went from a simple binary — is it kosher or not — to this bewildering marketplace of competing hechshers that often don't trust each other, and why the modern obsession with ever-increasing stringency is actually the historical anomaly. He's upfront about his bias — he thinks this whole situation makes a mockery of kashrut. And honestly, he's not wrong.
Herman
The thing that jumps out at me immediately is that framing — "liberal kosher." It's a terrible label because it implies Tzohar is cutting corners on halakha, and that's not what's happening. What's actually happening is a political fight dressed up as a religious one, and the July twenty twenty-six reversal is the latest move in a decades-long struggle over who gets to control the word "kosher" in Israel.
Corn
Right. And that's the core tension. This isn't really about whether the schnitzel at some Tel Aviv restaurant meets the standards. It's about who decides. The Rabbinate had a state-enforced monopoly for decades, the previous government broke it in twenty twenty-three by recognizing Tzohar, and now the new government is trying to glue the monopoly back together.
Herman
So let's start with Tzohar itself — what it is, what it offers, and why the Rabbinate sees it as an existential threat rather than just a competitor.
Corn
Tzohar was founded in two thousand two by Rabbi David Stav and a group of other religious Zionist rabbis. And the name matters — "tzohar" means window or aperture, and the whole mission was about transparency and openness. Their original focus wasn't even kashrut. It was making religious services accessible — marriage, burial, conversion — for Israelis who were turned off by the Rabbinate's bureaucracy.
Herman
And "turned off" is putting it mildly. The Chief Rabbinate has a reputation for being — how do I say this charitably — a system that sometimes seems designed to make people give up. Endless paperwork, inconsistent requirements, and an approach that can feel more like gatekeeping than pastoral care. Tzohar positioned itself as the alternative: same halakhic framework, completely different attitude.
Corn
I want to give a concrete example of what that different attitude looks like in practice, because it's easy to talk about "transparency" in the abstract. Take a couple trying to register for marriage through the Rabbinate. Under the standard system, they might be told to produce documents proving their Jewish status — their parents' ketubah, their grandparents' ketubah, sometimes going back generations. If a document is missing, they're stuck. The process can take months, and the couple often feels like they're being interrogated rather than served. Tzohar's approach is to work with the couple to establish their status, to help them navigate the requirements rather than using the requirements as a barrier. Same halakhic standards for determining Jewish status. Completely different posture toward the human beings involved.
Herman
That's the perfect illustration. And it connects directly to the kosher certification piece, which came later. It's worth understanding exactly what Tzohar does differently on the kashrut side. They don't claim to be more lenient on the standards. They're not saying "actually, that pig is fine." What they offer is a different supervision model — more transparent about their processes, less bureaucratic, and crucially, they're willing to certify restaurants and venues that the Rabbinate blacklisted for reasons that have nothing to do with the food.
Corn
This is the key mechanism. Take a restaurant in Tel Aviv that keeps a fully kosher kitchen — separate dishes, only kosher ingredients, the whole thing — but it stays open on Shabbat. The Rabbinate won't certify it. Not because the food isn't kosher, but because the restaurant's business practices don't align with the Rabbinate's broader religious agenda. Tzohar will certify that restaurant, because their question is narrower: is the food kosher?
Herman
And that distinction is everything. The Rabbinate uses its certification power as a lever for broader religious compliance. Tzohar is saying the certification should answer one question and one question only.
Corn
But let me push on that for a second, because I think a listener might reasonably ask: isn't Shabbat observance part of kashrut in some sense? If a kitchen is operating on Shabbat, doesn't that raise questions about who's doing the cooking and whether the food prepared on Shabbat is permissible?
Herman
That's a fair question, and it gets at something subtle. The halakhic issue with food cooked on Shabbat is specific — it's about food cooked in violation of Shabbat by a Jew. But a restaurant that's open on Shabbat could easily arrange for non-Jewish staff to do all the cooking on that day. The food itself, the ingredients, the equipment — all kosher. The Rabbinate's position is that even if the food is technically kosher, certifying a Shabbat-violating establishment lends legitimacy to Shabbat violation. That's a policy position, not a halakhic one about the food.
Corn
And Tzohar's counter is: our job is to tell you whether the food is kosher, not whether the restaurant owner's personal observance meets a particular standard. That's a genuinely different philosophy of what certification means.
Herman
Now, under the twenty twenty-three commitment, the government recognized Tzohar's certification alongside the Rabbinate's. That meant a restaurant could choose. If you wanted the Rabbinate hechsher, fine. If you preferred Tzohar's model, also fine. Both were recognized by the state as valid kosher certification.
Corn
The July twenty twenty-six reversal eliminates that choice. Restaurants that had switched to Tzohar certification now find themselves in limbo — their certification is no longer state-recognized, which means they can't legally describe themselves as kosher. The Rabbinate's monopoly is back.
Herman
And let's be clear about what "monopoly" means here in practical terms. It's not just theological authority. It's economic power. A restaurant without a recognized hechsher loses a significant chunk of its customer base. Tourists who keep kosher won't eat there. Religious locals won't eat there. The certification isn't a nice-to-have — it's existential for many businesses. I spoke to a restaurant owner in Jerusalem a few years ago who told me that losing his certification, even temporarily during a dispute with the Rabbinate, cut his revenue by forty percent in a month. Forty percent. That's not a theological problem. That's a business catastrophe.
Corn
There's also a deeper dynamic here that Daniel's prompt gets at. The Rabbinate's power over certification isn't just about the certification itself. It's a jobs program, a patronage network, and a political tool all rolled into one. Individual rabbis get positions as mashgichim — kosher supervisors — through the Rabbinate system. Those positions come with salaries funded by the businesses being supervised. Break the monopoly, and you break the patronage pipeline.
Herman
And that's why Tzohar is seen as such a threat. It's not that Tzohar is certifying thousands of restaurants — the numbers are actually relatively modest. It's that Tzohar's existence proves the monopoly isn't necessary. If a different organization can provide credible kosher supervision without the bureaucracy and the political baggage, the entire justification for the Rabbinate's monopoly collapses. It's the same dynamic you see in any monopoly disruption. The incumbent doesn't just lose market share — it loses the argument that only the incumbent can do the job.
Corn
So that's the Tzohar piece. But Daniel's second question is the one that really interests me — how did we even get to a world where this is a fight? For most of Jewish history, kosher was binary. You had a local rabbi or a communal authority who said "this is kosher" or "this isn't." There wasn't a marketplace of competing certification labels.
Herman
This is where the history gets fascinating. The shift starts in the nineteen sixties and seventies, and it's driven by something that seems almost mundane: processed food.
Corn
The Oreo problem.
Herman
When most of what people ate was prepared at home from recognizable ingredients, kosher supervision was straightforward. You bought meat from the kosher butcher, you bought produce, you cooked it yourself. But as packaged foods took over American kitchens, the question became much harder. Is that box of crackers kosher? What about the shortening? The flavorings? The processing equipment?
Corn
And you couldn't just ask the local rabbi anymore, because the local rabbi had no way of knowing what was happening in a Nabisco factory three states away. Think about what's actually in a processed food factory. You've got shared equipment that might run dairy one day and pareve the next. You've got flavor compounds synthesized in chemical plants that supply dozens of food manufacturers. You've got supply chains that cross international borders. The local rabbi model was built for a world where the supply chain was the kosher butcher down the street and the produce vendor you'd known for twenty years. It simply couldn't scale to industrial food production.
Herman
Right. Enter the Orthodox Union — the OU. They started mass-certifying packaged foods in that period, creating what was effectively the first national hechsher brand. The little U inside a circle became a recognizable symbol that consumers could look for. It was practical, it was necessary, and it solved a real problem.
Corn
But it also created something new: a brand identity around kosher certification. Once you have one national certifier, you've opened the door to competitors. And once you have competitors, each one needs to differentiate itself.
Herman
And here's where the stringency spiral begins. If you're a new certifier trying to break into the market, what's your pitch? "We're just as good as the OU" isn't compelling. But "we're stricter than the OU on these specific issues" — that's a value proposition. It signals to consumers that your hechsher is more trustworthy because you go above and beyond.
Corn
This is a classic credentialing arms race. Each certifier has an incentive to be more stringent than the others, because stringency becomes a proxy for reliability. The Chofetz Chaim Heritage Foundation, Star-K, Kof-K — they each carved out niches by being more exacting on particular issues. Bishul Yisrael — food cooked by a Jew. Pas Yisrael — bread baked by a Jew. Cholov Yisrael — milk supervised by a Jew from milking to bottling.
Herman
And what's so striking is that many of these stringencies were originally minority opinions or specific customs, not mainstream halakhic requirements. Cholov Yisrael is the classic example. Most major poskim — halakhic decisors — have ruled that in countries with government dairy regulation, standard commercial milk is kosher. That's cholov stam. But once a certifier starts requiring cholov Yisrael as its standard, it creates a new baseline. Consumers start to think "well, if this other milk is more supervised, maybe the regular stuff isn't really kosher."
Corn
Let me give you an analogy that I think helps here. Imagine if the Department of Agriculture decided that "organic" wasn't enough anymore, and created "super-organic," which required not just no pesticides but also that the farm be visited by an inspector every single day. Then someone else comes along and says "actually, we're doing ultra-organic — daily inspection plus soil microbiome testing." At each step, the new label doesn't just offer an additional option. It implicitly raises doubts about the adequacy of the previous standard. If ultra-organic exists, maybe regular organic isn't really safe. The existence of the higher tier degrades trust in the lower tier, even if the lower tier was perfectly fine yesterday.
Herman
That's exactly the mechanism. And "glatt kosher" is the perfect case study within kashrut. Originally, "glatt" meant something very specific — it referred to meat from an animal whose lungs were found to be smooth, free of adhesions that might indicate a defect. It was a higher standard for a specific category of kosher meat. Now? You see "glatt kosher" on everything. Pickles. Candy. Foods that don't even contain meat. It's become a general marketing term meaning "extra kosher," which is theologically meaningless.
Corn
I saw a bag of "glatt kosher" potato chips last week. Potato chips. What lung adhesions are we worried about on a potato chip? The term has been completely unmoored from its halakhic meaning and turned into a brand signal.
Herman
And that's Daniel's point about the system making a mockery of kashrut. When you slap "glatt" on a product that has nothing to do with lung adhesions, you're not communicating halakhic information. You're communicating "we're more pious than the other brand." It's virtue signaling through food labeling.
Corn
The Israeli dimension adds another layer. The Chief Rabbinate's monopoly was established in the early days of the state, and it was modeled on the Ottoman millet system — where each religious community had its own authorities that governed personal status and religious matters. It was always political, never purely halakhic. The fragmentation in Israel isn't about market competition the way it is in America. It's about state power.
Herman
And that's what makes the Tzohar case so revealing. In America, if you don't trust the OU, you can look for a different hechsher. The market provides alternatives. In Israel, until twenty twenty-three, you didn't have that choice — the state said the Rabbinate was the only game in town. The twenty twenty-three commitment to recognize Tzohar was a move toward the American model. The twenty twenty-six reversal is a move back to the Ottoman model.
Corn
Now, here's where I think Daniel's historical argument really lands. For centuries, kosher was maintained through local trust. You knew the shochet — the ritual slaughterer. You knew the rabbi. You trusted the community's standards. The idea that you'd need a printed symbol from a national organization headquartered in another city — that would have seemed bizarre.
Herman
And it's not just that the system changed — the theology around it changed too. The modern assumption is that more stringency equals more piety. That if you're not keeping cholov Yisrael, or if you're not insisting on glatt, you're somehow doing kosher "light." But that assumption is itself an innovation. Traditional Jewish law has a concept of "ha'machmir tavo alav bracha" — one who is stringent, blessing comes upon him — but it's optional, aspirational. It's not a baseline requirement.
Corn
What's happened in the last fifty years is that the optional stringencies have become the new floor. And once that floor is established, someone comes along with an even higher standard, and the cycle repeats. It's an arms race with no logical endpoint. I sometimes wonder what the endpoint even looks like. Do we eventually get to a point where each individual cow needs its own personal mashgiach who follows it around from birth to slaughter? That sounds like a joke, but the logic of the arms race points in exactly that direction.
Herman
There's a structural reason for this too. The certifying agencies are paid by the companies they certify. That creates an odd incentive: the agency wants to maintain its reputation for reliability, which pushes toward stringency, but it also wants to keep its clients, which pushes toward flexibility. The balance tends to favor stringency because one scandal — one case of a certified product turning out to be non-kosher — can destroy an agency's credibility.
Corn
And the consumer bears the cost. Not just in higher prices — though that's real; certification isn't free — but in the narrowing of options. If every certifier is chasing the most stringent standard, the pool of certified products shrinks. Kosher consumers end up with fewer choices, and the choices they have are more expensive. I've seen estimates that kosher certification can add anywhere from five to fifteen percent to a product's cost, depending on the complexity of the supervision. When you layer multiple certifications on top of each other, those costs multiply.
Herman
There's also a social dimension that's uncomfortable to talk about but important. The stringency spiral creates class divisions within observant communities. If you can afford to keep the highest standards — only eating glatt, only cholov Yisrael, only pas Yisrael — that becomes a marker of status. If you can't, or if you live somewhere without access to those products, you're implicitly less observant, less serious. The hechsher becomes a class signifier.
Corn
And it fragments communities. When I was growing up — and I know you remember this too — you could have a Shabbat meal at someone's house and not interrogate them about which hechsher they used. Now, in many communities, that's a real question. "Do you hold by the Star-K?" "Is your meat from the right shechita?" The shared table, which is supposed to be the center of Jewish communal life, becomes a site of suspicion.
Herman
That's the human cost of the arms race. And it's worth saying explicitly: none of this is required by halakha. The basic standards of kashrut haven't changed. What's changed is the social and commercial apparatus around them. I think about my grandmother's kitchen — she kept a strictly kosher home her entire life, and I don't think she ever once looked for a hechsher symbol on a product. She knew her butcher, she knew her community, and that was enough. The idea that her kashrut was somehow deficient because she didn't have a national agency's stamp of approval — it's absurd on its face.
Corn
So if the stringency arms race is a historical anomaly — and I think the evidence is pretty overwhelming that it is — what does that mean for how someone should think about kosher certification today?
Herman
I think the first takeaway is just awareness. Understand that hechsher proliferation is a feature of the market, not a reflection of actual halakhic disagreement. When you see two products and one has five different hechshers and the other has one, that doesn't mean the five-hechsher product is "more kosher." It means the manufacturer is targeting multiple market segments.
Corn
Right. The hechsher is a business decision by the manufacturer, not a theological statement. And consumers can make informed choices without buying into the premise that stricter always means better. If you're standing in the supermarket aisle comparing two boxes of crackers and one has three hechshers and the other has one, the question to ask isn't "which one is more kosher?" It's "does the one with the single hechsher come from a certifier I trust?" If the answer is yes, you're done. The extra two symbols are marketing, not theology.
Herman
The second takeaway — and this is where the Tzohar case is so instructive — is that kosher certification is always embedded in politics and economics. Knowing who certifies your food and why is as important as knowing what they certify. The Rabbinate's monopoly isn't about halakha. It's about power. Tzohar's challenge isn't about leniency. It's about breaking that power.
Corn
And for listeners who keep kosher, I think Daniel would say — and I agree — pay attention to the politics behind the certification. Support organizations that prioritize transparency and accessibility over stringency signaling. Question the assumption that "more strict" automatically equals "more kosher." It's not a betrayal of tradition to ask these questions. If anything, it's more traditional. The local-trust model that existed for centuries was far more flexible and contextual than the industrialized certification system we have now.
Herman
There's a deeper theological point here too. Kashrut is supposed to be about mindfulness — about bringing awareness to what you eat and how it connects to a broader framework of values. When the system becomes a maze of competing labels and escalating stringencies, it can actually undermine that mindfulness. You're not thinking about the food anymore. You're just checking for the right symbol.
Corn
The symbol becomes a substitute for thought. And that's the mockery Daniel's talking about. The whole point of keeping kosher, at least as I understand it, is to cultivate a certain relationship with consumption — to be intentional about what you put in your body and where it comes from. If you've reduced that to scanning for a logo, you've lost the plot entirely. You might as well be checking a barcode.
Herman
And look, I want to be careful here. I'm not saying hechshers are bad or unnecessary. For processed foods in a global supply chain, they're essential. The OU solved a real problem, and I'm grateful they exist. The issue isn't certification itself. It's the unexamined assumption that more certification, more stringency, more symbols — that this always represents an improvement in religious observance. It doesn't. Sometimes it just represents market segmentation.
Corn
So where does this go from here? The Tzohar reversal — will it hold?
Herman
It'll be challenged in court, almost certainly. The Israeli Supreme Court has weighed in on these questions before, and the legal argument for breaking the monopoly is strong. But courts move slowly, and governments change. The deeper question is whether the kosher certification system can reform itself, or whether fragmentation is just the new normal.
Corn
I suspect fragmentation is here to stay, for better and worse. The American model of competing certifiers isn't going anywhere, and the Israeli model of state monopoly is increasingly untenable in a society where a significant portion of the population wants kosher options but doesn't trust the Rabbinate to provide them.
Herman
The question is whether the fragmentation can be healthy — whether it can produce real choice and transparency — or whether it just becomes an endless escalation of stringency signaling that leaves everyone worse off.
Corn
I'm not optimistic, but I'm not entirely pessimistic either. Tzohar's model — same standards, different attitude — shows that there's an alternative to the arms race. The fact that it's being attacked politically suggests it's working. You don't try to crush a competitor that isn't gaining traction.
Herman
The political fight is itself evidence that Tzohar has demonstrated something important — that you can have credible kosher certification without the monopoly, without the bureaucracy, and without using certification as a lever for unrelated religious compliance. That genie doesn't go back in the bottle easily.
Corn
The obsession with stringency may be a historical anomaly, but it's not going away. Understanding its origins doesn't make it disappear. But it does let you opt out of the arms race with your eyes open. You can keep kosher without treating every new stringency as a new baseline requirement. You can trust a single reliable certification without needing five of them on every product. You can ask whether a given standard is about halakha or about branding.
Herman
And you can recognize that the local rabbi who knew your community and your circumstances wasn't a less reliable system than the national agency with the glossy symbol. It was just a different one — and in many ways, a more human one. A system built on relationships rather than logos. There's something worth recovering there, even if we can't go back to it entirely.
Corn
Daniel's frustration is warranted. The system as it currently exists does, in many ways, make a mockery of what kashrut is supposed to be. But naming the problem is the first step toward not being trapped by it. You don't have to play the stringency game. You don't have to treat every new hechsher as a new obligation. You can step back and ask: is this helping me be more mindful about what I eat, or is it just adding noise?
Herman
And if the answer is noise, you have permission to ignore it. That's not being less observant. That's being more thoughtful about what observance actually means.
Corn
And now: Hilbert's daily fun fact.

Hilbert: In the nineteen sixties, an anthropologist working in Papua New Guinea documented a variant of the Aztec board game patolli in which players kept score using dried bean pods, and the only surviving written description of the scoring rules comes from a single missionary's letter dated nineteen sixty-three — a letter that was misfiled in a Melbourne archive and not rediscovered until two thousand eleven. The anthropologist, by the way, had no idea he was documenting an Aztec game — he thought he'd found a unique local tradition. It wasn't until the letter was rediscovered that researchers realized the game had somehow traveled across the Pacific, likely via Spanish trade routes in the sixteenth century.
Corn
...beans.
Herman
Always with the beans. And now I'm curious about how an Aztec board game ends up in Papua New Guinea. That's going to bother me all day.
Corn
That's Hilbert's gift — he gives you just enough to be haunted by the unanswered questions. Thanks, Hilbert.
Herman
This has been My Weird Prompts. If you enjoyed this episode, we'd love it if you left us a review wherever you listen. We'll be back soon.

This episode was generated with AI assistance. Hosts Herman and Corn are AI personalities.