Canada's Cheese Quota Has 2.1 Million Kilos Going Unused. That Isn't Why You Can't Find Queso Fresco.

You will read, in a lot of places, that Canada's dairy import quotas are why Mexican cheese is hard to find here. It is a satisfying explanation. It fits everything you already believe about supply management.

We went and checked it, against the treaty texts, the customs tariff, the government's own quota utilization report and UN trade data. The quotas are real. The explanation is not.

And the reason it fails is not subtle. It fails by a factor of a hundred.

The quotas, verified to the kilogram

Canada runs several separate cheese tariff-rate quotas at once. For calendar year 2026:

All of those come from Global Affairs Canada, and three of the figures commonly quoted online are quoted wrong:

"The CUSMA cheese quota is 6,313,000 kg" is half of it. CUSMA has two cheese TRQs — TRQ-CA5 "Industrial Cheeses" and TRQ-CA6 "Cheeses of All Types" — each of 6,313,000 kg in 2026, so 12,626,000 kg of access in total. The treaty text gives both the identical growth table: year 1 at 1,042 metric tonnes, rising to 6,313 in year 7 and 7,113 in year 19, where it stays. Year 7 is calendar 2026, which we confirmed independently against the utilization report.

"The WTO quota is 20,411,866 kg" is correct as a total and useless as an answer, because it is administered as two separate pools by origin: 14,271,831 kg for cheese from EU member states and 6,140,035 kg for non-EU sources. For the Mexican question only the second one exists, and it is less than a third the size.

"CETA is 16,000,000 kg" omits the second CETA pool, the industrial one, at 1,700,000 kg.

And "item 141 of the Import Control List" is a nickname. The notices themselves define cheese as items 141 to 157. Item 141 on its own is only fresh cheese — unripened and uncured, headings 0406.10.10 and 0406.10.20. Items 142 to 157 are everything else: cheddar, blues, gouda, mozzarella, parmesan, "all other cheeses".

What Mexico genuinely does not have

Two things, and both are real.

Mexico has no allocation under the CUSMA quota. This is in the treaty, not in an interpretation. Canada's Appendix 2, Section A, paragraph 1 reads, word for word: "Section B of this Appendix sets out the tariff rate quotas (TRQs) that Canada shall apply to certain originating goods of the United States under this Agreement."

The two cheese quotas — TRQ-CA5 "Industrial Cheeses" and TRQ-CA6 "Cheeses of All Types" — are both in that Section B. So Canada's CUSMA dairy TRQs are for American product. Mexico is a party to the agreement and is not in that appendix.

Mexico has no tariff preference on cheese either. We read all eighty tariff lines under heading 04.06 in the 2026 Canadian Customs Tariff. Line 0406.10.10, within access commitment, pays 3.32¢/kg MFN and is free for NZT, CCCT, LDCT, UST, CT, IT, PT, COLT, JT, PAT, CEUT, UAT, CPTPT and UKT.

MXT — the Mexico Tariff — appears on none of them.

That absence is not an oversight, and here is how we know: MXT does appear elsewhere in the very same tariff chapter, for natural honey (0409.00.00), for edible insects (0410) and for certain yogurts (0403.20.10). Mexico has preferential access to Canada for honey and crickets and not for cheese. Somebody decided that.

Outside the quota, the rate is punitive: 245.5%, and not less than $4.52/kg on 0406.10.20, with no preference for Mexico.

So there is a genuine structural asymmetry. In 2026 the United States has 12,626,000 kg of duty-free access plus tariff preference. Mexico has neither.

That much is demonstrated. Now the part that breaks the argument.

Mexico can get in — and nobody is using the door

Mexico can compete in the WTO non-EU pool. It is general access by origin, and in 2026 it holds 6,140,035 kg.

We pulled Global Affairs Canada's cheese utilization report on 25 September 2026, with about three-quarters of the quota year gone. Permits issued against that pool: 3,967,753 kg — 64.6%.

2,172,282 kg of it had no permit issued against it.

Now put Mexico's actual exports next to that. UN Comtrade, Canada reporting, HS 0406, imports from Mexico:

Seventeen tonnes. In the same year Canada imported 20,181,717 kg of cheese from the United States alone, and in 2022 it imported 51,566,760 kg from the world.

So Mexico fills 0.28% of the pool that is open to it, and roughly 0.03% of Canada's total cheese imports. And the room going unclaimed in that pool — 2.17 million kilos — is about 125 times everything Mexico ships to Canada in a year.

A quota with room left over cannot be the reason a country fails to fill even 0.3% of it. If the quota were the binding constraint, we would see Mexican exporters queuing for permits and being turned away at the ceiling. What the data shows is a ceiling nobody is pressing against.

For scale on how much unused room there is in Canadian cheese quotas generally, the same report shows the CPTPP Industrial Cheese TRQ at 8,217,000 kg and zero permits issued. Not a low figure — zero.

Every other pool the same day: WTO EU 77.1%, CUSMA all types 64.1%, CUSMA industrial 46.0%, CETA all types 65.5%, CETA industrial 37.6%.

So what is it, then?

Three hypotheses, with what the evidence does to each.

1. A sanitary barrier — approved plants and country listings. This gets weaker, not stronger, when you check.

The CFIA's requirements for importing dairy are: comply with the Safe Food for Canadians Regulations and the Food and Drug Regulations, obtain in most cases an export zoosanitary certificate under the Health of Animals Act, and hold an import permit under the EIPA.

There is no list of approved countries or approved establishments for dairy — unlike meat, where there is. Mexico is not named in any restriction. And the CFIA explicitly recognises Mexico as free of foot-and-mouth disease, so the reinforced treatments required for products from non-FMD-free countries do not apply.

We could not find a Mexico–Canada sanitary equivalence agreement for dairy, or a SENASICA list of Mexican plants approved for Canada. Unverified. But that gap is not a barrier, because of what we just said: Canada does not operate an approved-establishment system for dairy. There is no list to be missing from.

2. Raw milk and the 60-day rule. Real, and narrower than it sounds.

The Food and Drug Regulations, B.08.030, define "stored" as held at 2 °C or above for 60 days or more from the start of manufacture. The CFIA's policy for French raw-milk cheese confirms the general 60-day ripening rule and describes the only documented bilateral exception: after an assessment visit by Health Canada and the CFIA to France in 2000, Canada accepts per-shipment health certificates instead of the 60 days. We found no equivalent exception for Mexico.

What that actually blocks is young artisanal Mexican raw-milk cheese — traditional young cotija, queso de aro, artisanal adobera, some Chiapas cheeses. It does not block industrial pasteurized Mexican cheese, which is the bulk of exportable production.

So this one is a real barrier on a narrow class of product. It is not an explanation for the absence of queso fresco.

3. Local substitution and lack of scale. The one with the most support — and still a hypothesis.

Mexican-style cheese sold in Canada is largely made in Canada. Verified producers, each site opened:

Local Dairy's La Vaquita Oaxaca won the mozzarella category of the Canadian Cheese Grand Prix in 2015. Rumba's Canadian Standards of Identity route is worth noting too: Volume 1 names no Latin American cheese at all, so Canadian cheesemakers label legally under the generic "(Naming the variety) Cheese" clause. That is what lets a Quebec dairy write "Queso Oaxaca" on a package.

With equivalent product made inside Canada — no quota, no tariff, no zoosanitary certificate, and a short cold chain for a fresh, perishable food — the incentive to import fresh cheese from Mexico is structurally low.

That is coherent with the data. It is also a plausibility argument, and we want to be honest about its status: we found no study, industry report or company statement that quantifies it. We are not upgrading a reasonable inference into a finding.

The experiment we could not run

There is one test that would settle this, and we could not perform it.

Does Mexican-style cheese made in the United States — Cacique, V&V Supremo, Marquez Brothers, Don Francisco — get sold in Canada, and under which quota?

If it does, then the market wants the product, and the reason it does not come from Mexico is about tariff access and supply chains rather than demand. If it does not, then Canadian demand for imported Mexican-style cheese is simply small, and the quota question is a distraction.

The Cacique and V&V Supremo websites do not mention Canada, and their store locators need JavaScript we could not run. Unresolved. Anyone continuing this work should start there.

We also do not know which regime those seventeen tonnes a year come in under — the WTO non-EU pool, over-quota at 245.5%, or an import-for-re-export programme. The utilization report does not break down by country of origin.

One caveat on our own numbers

The Canada–Mexico trade figures above come from UN Comtrade, and Comtrade flags these records as estimated rather than reported (isReported: false, net weight estimated). We could not confirm them against a Canadian source: Trade Data Online generates its report through a JavaScript form, and Statistics Canada's CIMT database did not respond. Mexico's SIAVI is down, so there is no mirror figure from the other side.

We are telling you this because the 125× comparison depends on that 17,325 kg. It does not depend on it being exact. Mexico's cheese exports to Canada would have to be wrong by two orders of magnitude before the unused quota room stopped dwarfing them, and no plausible error does that.

The verdict

Not demonstrated.

The quotas exist, they are real, and we have verified them to the kilogram. We found no evidence causally linking them to the scarcity of Mexican cheese in Canada, and the evidence we did find points the other way.

What is proven: Mexico has no CUSMA allocation, no tariff preference on cheese, and faces 245.5% outside the quota. That is a genuine structural disadvantage against the United States.

What is refuted: the strong form of the argument — that there is no quota room for Mexican cheese. There is. Two million kilos of it, sitting unclaimed in the pool Mexico is entitled to use, while Mexico ships seventeen tonnes.

What is most plausible, offered as hypothesis and not as fact: the combination of local manufacture and missing scale. The fresh, perishable varieties that would be imported — Oaxaca, panela, asadero, queso fresco, cotija, crema — are already being made in Quebec and Ontario, without quota, tariff or certificate. The 60-day raw-milk rule adds a real but narrow block on artisanal raw-milk cheese.

If you want the practical consequence rather than the trade-policy one: the queso Oaxaca in your Canadian supermarket is not a workaround for a blocked import. It is a product of a dairy in the Eastern Townships, and it does not need the quota at all.