Recipes

    Processed & Modern

    The last family, and the one this section has been quietly arguing with for thirty pages. I want to finish it fairly, because the easy version of this page — sneering at American singles — would be both boring and wrong.

    Processed cheese, and what it actually does

    Kraft’s 1916 patent described taking cheese of the cheddar genus and stopping it from disintegrating under heat: grind it, heat it with continuous agitation until thoroughly sterilised, package it.

    The modern version runs on emulsifying salts — sodium citrate and sodium phosphates — and the mechanism is exactly the one the melting page sets out. These are calcium-sequestering salts: they bind the calcium holding the casein network rigid, sodium substitutes for it, and the loss of cross-links increases protein solubility, reduces protein–protein interactions, and increases the tendency to melt.

    So a processed cheese slice melts flawlessly and never splits because its calcium cross-links have been deliberately dismantled. That’s not a cheat. It’s applied colloid chemistry, and it works.

    And the same chemistry is the best kitchen trick in this whole section. A pinch of sodium citrate turns any decent cheese into a glossy, stable, non-splitting sauce. I use it. It is genuinely the right answer for macaroni cheese, and anybody who tells you otherwise is choosing authenticity over results.

    What processed cheese gives up is everything else: the living rind, the slow proteolysis, the two years of change, the particularity. It is sterilised — which is to say, by the standards of the rest of this section, it is finished. Nothing further will happen to it, which is the entire design brief and the entire cost.

    The honest summary: the thing this section celebrates is precisely the thing that melts badly. Processed cheese solved a real problem extremely well by removing every property that made the problem interesting.

    American labels are precise and almost nobody reads them. Roughly, in descending order of actual cheese:

    • “Pasteurized process cheese” — real cheese, ground and emulsified.
    • “…cheese food” — less cheese, more dairy ingredients added.
    • “…cheese product” — less again.
    • “cheese slices” with no such phrase, or “prepared cheese product” — least.

    The words are not marketing fluff; they’re regulated categories, and the differences are real. If a package avoids the word “cheese” as a noun, that’s informative.

    Plant-based

    Nut- and starch-based cheese alternatives, and I’ll say the same thing here I said about the book on my shelf.

    By the definition this section uses, these are not cheese. No milk, therefore no casein, therefore none of the chemistry on the family tree applies — no micelles to destabilise, no network to build, no calcium cross-links to manage. The word is borrowed because “fermented cultured nut paste” would sell nothing.

    That is a statement about vocabulary, not about quality. What the good ones do — culture a fat-and-protein emulsion, ferment it, age it, develop flavour — is legitimately skilled work, and some results are very good. They belong on a different tree.

    The technical honesty point: they cannot melt the way cheese melts either, because melting behaviour in real cheese is a property of the casein-calcium network. Plant versions achieve stretch and flow with starches and gums, which is a different mechanism reaching for a similar result.

    🔴 Precision fermentation, and the conclusion I don’t get to dodge

    Here is where the last family stops being a footnote.

    Precision fermentation puts the gene for a milk protein into a microorganism and ferments it in a tank. Perfect Day received an FDA letter of no objection for animal-free whey protein in March 2020. New Culture then self-affirmed GRAS for animal-free casein — a world first, clearing it for commercial sale, aimed at mozzarella. Berlin’s Formo got an FDA “no questions” letter for precision-fermentation casein in June 2026.

    The detail that matters: the GRAS determination states the casein is bioidentical to the cow’s. Same identity, same macronutritional profile. Not an analogue. The same molecule.

    Which means — and I have tried and failed to find a way around this — cheese made from precision-fermented casein is cheese by my own definition.

    Add a coagulant and the micelles destabilise, the network forms, and you can cut it and cook it and press it and age it. Every mechanism in the science wing applies, because the molecule those pages are about is present.

    The escape routes and why they fail, which the today page works through at more length:

    • “It didn’t come from an animal.” Neither does the rennet in most American cheese, and hasn’t since 1990.
    • “There’s no terroir.” True, and a real loss — but that’s a loss of what makes a cheese particular, not of what makes it cheese. Commodity cheddar has no terroir either.
    • “It isn’t traditional.” The traditions in this section include a Roman recommending fig sap and a Swiss immigrant reverse-engineering Limburger in Wisconsin.

    A definition you only apply when you like the answer isn’t a definition. Mine is about chemistry, and it hands me an answer I didn’t order.

    Where I think this ends up

    The prediction from today, restated because it belongs here too:

    Precision fermentation will compete where consistency and cost decide — which is exactly the territory Jesse Williams’ factory system and Kraft’s patent were built to win. A tank has real advantages over a herd if you’re making protein for a frozen pizza.

    It will not touch a cheese whose whole value is that it couldn’t have come from anywhere else. Roquefort has survived the industrial revolution, two world wars, refrigeration, global shipping and Danish feta. It will survive a bioreactor.

    The middle is genuinely open, and I don’t know.

    What I do know is that none of it changes what happens in my basement. A wheel in the cave is not competing with a tank in California, any more than it was competing with a factory in Wisconsin. It’s the same thing people have been doing for seven thousand years: keeping the milk, and finding out what happens if you change one variable on purpose.

    That’s the Families wing — all thirteen. Back to the family tree for the map, or the hub for everything else.

    Sources

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