Recipes

    Making Soft-Ripened & Bloomy-Rind Cheese

    Camembert-style, brie-style, crottin, triple crème. The ones with the white velvet coat that go gradually molten from the outside in.

    The family page is what they are. This is how to run one — and almost every decision on this page follows from a single structural fact.

    The one thing: this cheese ripens from the outside in

    Penicillium candidum lives on the surface. It cannot get into the middle of a wheel, so it works inward from the rind, and everything about the make is arranged to let it reach the centre before it wrecks the outside.

    Three consequences, and they’re not negotiable:

    The format must be small and thin. A camembert-style wheel is about 4 inches across and 1 to 1½ inches thick. Make it twice as thick and the ripening front never reaches the middle: you get a runny ring around a chalky core, forever. That’s not under-ripening, it’s geometry.

    The curd must stay wet. Barely cut, never pressed, drained by gravity. The mould needs moisture and the paste needs to be soft enough to go creamy. A pressed bloomy rind is a contradiction.

    And you have to stop it. The mould does not stop when the cheese is perfect. It keeps going, and where it goes is ammonia.

    What the mould is actually doing

    P. candidum consumes lactic acid at the surface and produces ammonia. So the surface pH rises — from around 4.7 at draining to well over 6 as ripening runs — while the centre stays acid.

    That gradient does two things. Calcium migrates outward down it, which strips the interior of the cross-links holding it rigid; and the mould’s proteases break down the casein under the rind. The result is the ripening ring you see on a cut wheel: liquid at the edge, firm in the middle, the line between them moving inward week by week.

    ⭐ Which means a bloomy rind is never “done” — it is only ever passing through the condition you wanted. Some of the best cheese in the world is a controlled slow failure, and knowing that changes how you plan a make: you aren’t waiting for an endpoint, you’re choosing when to interrupt.

    The make, step by step

    1. Milk and additions. A gallon, warmed to 86–90 °F / 30–32 °C. Mesophilic culture, plus P. candidum, plus — if you have it — a little Geotrichum candidum, which gives a more wrinkled, brainy rind and helps the surface get going. Calcium chloride if the milk is shop-bought.

    Add the moulds with the culture, at the start, into the milk. Surface-spraying later works but is less even.

    2. Ripen 60–90 minutes, then rennet at a low dose and let it set slowly. Flocculation multiplier 5 to 6 — a long, gentle coagulation that builds a fragile gel holding a lot of moisture. If your recipe gives a clock time it’ll be somewhere near 90 minutes, but the multiplier is the honest instruction.

    3. Barely cut it. ¾-inch to 1-inch cubes, or in the French manner not cut at all — just ladled in slices. No cooking, no stirring. Let it sit 10 minutes.

    4. Ladle into moulds. Straight-sided open-ended moulds on a draining mat. Fill them to the brim and then fill again as it sinks — a gallon fills far fewer moulds than you expect once it settles.

    5. Flip, repeatedly. Every 30 minutes for the first two or three hours, then a few more times over 12 to 24 hours at 68–72 °F / 20–22 °C. Flipping is what makes the wheel even; skip it and you get a fat bottom and a thin top with a rind that only works on one face.

    No press. The weight of the curd is the press.

    6. Salt the surface. Dry-salt both faces and the edge at roughly 2% of the wheel’s weight, or give it a short saturated brine. Salt controls how fast the mould grows — under-salt and it goes riotous, over-salt and it never blooms.

    7. Dry. Let the surface go dry to the touch at room temperature, a few hours to overnight, before it goes to ripen. ⚠ This is the step people skip and it is the direct cause of the most common failure on the page.

    8. Ripen at 50–55 °F / 10–13 °C, 90–95% RH. Flip daily. White fuzz appears at day 5 to 10 and covers the wheel by day 10 to 14.

    9. Wrap, and slow it down. Once the coat is full, wrap in two-ply cheese paper and move to 39–45 °F / 4–7 °C. The paper lets it breathe but holds a little moisture at the rind, and the cold drops the mould’s metabolism.

    ⭐ The wrap is the brake. An unwrapped bloomy rind sitting in a humid cave keeps ripening at full speed and will go to ammonia while you’re admiring it.

    10. Eat it between four and six weeks from make day. Press the middle with a thumb: when the centre gives, it’s there.

    What “right” looks like

    A dense, even, slightly wrinkled white coat, not a fluffy one. Fluffy means too humid or too young.

    A faint mushroom smell. A whiff of ammonia right at the rind on an older wheel is normal and blows off in a minute on the counter. Ammonia you can smell through the paste is over.

    Cut it and the ring should be visible — soft at the edge, firmer toward the centre.

    What goes wrong

    Rind slip — the coat separates from the paste and slides. Surface was too wet going into the cave (step 7), or the humidity is too high. Dry it properly first.

    No bloom, or patchy. Too cold, too dry, too salty, or the culture’s dead. Bloomy rinds want humidity at the top of the range; a cave that’s been running dry will not grow one.

    Blue volunteers. ⚠ If you have ever made blue in the same space, P. roqueforti spores are in it and they are more vigorous than P. candidum. Rub them off early with a dry cloth, or run the two families in separate boxes. This is a real scheduling problem in a small cave and it’s worth planning around rather than discovering.

    Chalky core that never softens. Wheel too thick, or eaten too early, or the curd over-acidified before moulding.

    Ammonia through and through. Over-ripe. Too warm, or unwrapped too long, or both. Not fixable — but note the wheel is not spoiled in a safety sense, it’s just gone past what you wanted.

    Bitterness. Usually excess rennet, sometimes an over-proteolytic culture.

    Where I actually stand on this family

    I’ve made blue and a couple of other mould-ripened cheeses, and dabbled is the honest word — it is the family I’ve explored least in thirty years. So take this page as researched and reasoned rather than as thirty batches of experience, and I’d rather say that than write it as though it were the cheddars.

    What I do have is the equipment this family actually needs, which is humidity control, and it’s the reason the converted fridge exists at all. 90–95% RH is not something a cave gives you by accident.

    The formulas

    All six are written, and they are not six shapes of one recipe — the batch turned on a distinction that took me by surprise:

    Rennet-set — a normal rennet dose, a set in an hour or two, and a paste that goes fully molten:

    Lactic-set — a tiny rennet dose, a twelve-to-twenty-four-hour mostly-acid coagulation, and a paste that never goes fully liquid:

    🔴 And that axis is the thing worth carrying away from this wing. A chalky centre in a Chaource is the cheese working correctly. A chalky centre in a camembert means it is not ready. Same observation, opposite verdicts — and no book I have read sorts the family that way.

    ⚠ All six are marked UNTESTED. I have dabbled in blue and “a couple of other mould-ripened cheeses,” and I genuinely cannot tell you whether one of those was a camembert — so I am not going to claim it.

    🔴 One naming rule that applies here more than anywhere: Camembert de Normandie and Brie de Meaux are protected names attached to specific places and specific milk. What you make at home is a camembert-style and a brie-style cheese, and this section will always write it that way. See the raw-milk wars for why the Normandy version in particular is a legal argument as much as a cheese.

    But two auxiliaries every make on this page needs are written: Cheese Culture, Mesophilic Mother and Cheese Brine, Saturated — and the brine one is the more important of the two, because a plain salt brine takes a good cheese apart in about a week.

    Next: washed rinds — the orange, sticky, magnificently smelly ones, and the reason the first two weeks of washing aren’t about the bacteria you think.

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