From Milk to Masterpiece
Every cheese in the world, from a simple cottage cheese to a 24-month aged Cheddar, follows the same basic principle: cause milk to separate into solid curds and liquid whey, then process those curds into cheese. The staggering variety of results comes from the infinite variations in milk, method, and maturation.
The Raw Material: Milk
Everything starts with milk, and the milk determines the cheese.
Type Matters
- Cow's milk — The foundation of most British cheese. Rich, versatile, and available in volume
- Sheep's milk — Higher in fat and protein than cow's. Produces sweeter, denser cheeses with a distinctive lanolin character
- Goat's milk — Lower in fat, with smaller fat globules (hence no cream line). Produces bright, tangy cheeses with a characteristic "goaty" flavour
- Buffalo's milk — Incredibly rich. Used for mozzarella and a few experimental British makers
Breed Matters
Different cattle breeds produce different milk. Friesian-Holsteins give the highest volume (and dominate British dairy farming), but breeds like Jersey, Guernsey, and Montbeliarde produce richer milk with higher protein and butterfat — ideal for cheesemaking.
Some of the finest British cheeses come from specific breeds: Isle of Mull Cheddar uses milk from Tobermory's farmstead herd, and Baron Bigod uses Montbeliarde milk. The breed is part of the terroir.
Season Matters
Spring and summer milk, from cows grazing on fresh pasture, produces cheese with more complex fats, higher beta-carotene (giving a yellower colour), and different bacterial profiles than winter milk from hay-fed animals. Traditional cheesemakers observe these seasonal shifts and adjust their methods accordingly.
The Cheesemaking Process
Step 1: Acidification
The first step is to introduce bacteria (the "starter culture") to the milk. These bacteria consume the lactose (milk sugar) and produce lactic acid, lowering the pH. This acidification is crucial — it determines the flavour and texture of the final cheese.
Traditional farmhouse cheesemakers often use "pint starters" — unique bacterial cultures maintained at the farm for generations. These give each maker's cheese a distinctive character. Factory cheese uses standardised freeze-dried cultures.
Step 2: Coagulation
Once the milk is acidified, rennet is added. Rennet contains enzymes (primarily chymosin) that cause the milk proteins (casein) to link together, forming a solid gel — the curd.
- Animal rennet — Traditionally from the stomach of a young calf. Still considered by many to produce the finest flavour
- Vegetarian rennet — From microbial or fungal sources. Now used in the majority of commercial cheese
- Thistle rennet — From cardoon thistle. Used in some traditional Portuguese and Spanish cheeses
The curd forms as a smooth, jiggly mass — like a milk-flavoured panna cotta. This typically takes 30-60 minutes.
Step 3: Cutting the Curd
The curd is cut with special wire tools ("harps") into pieces. The size of the cut determines how much whey escapes:
- Large cuts = more moisture retained = softer cheese (Brie, Camembert)
- Small cuts = more whey expelled = harder cheese (Cheddar, Parmesan)
Step 4: Cooking and Stirring
For harder cheeses, the cut curds are gently heated ("scalded") and stirred. This further expels whey and toughens the curd. The temperature and duration vary enormously between cheese styles:
- Soft cheeses — No cooking, or very gentle (below 37C)
- Semi-hard — Moderate cooking (37-39C)
- Hard/Alpine — Higher cooking (45-55C)
Step 5: Draining and Forming
The whey is drained off and the curds are collected. What happens next defines the cheese style:
- Moulding — Curds are ladled or pressed into moulds (forms). For soft cheeses, this is gentle — pour and let gravity do the work
- Cheddaring — The uniquely British technique: stacking curd blocks, turning them, allowing them to mat and develop texture
- Milling — Breaking the curd into small pieces before pressing (used in Cheddar-style cheeses)
- Salting — Salt is mixed into the curd (dry salting) or the formed cheese is soaked in brine (brine salting)
Step 6: Pressing
Hard cheeses are pressed in moulds under weight to expel remaining whey and compact the curd. Pressing duration ranges from a few hours (semi-hard) to several days (hard). The pressure, combined with the acid and moisture levels, determines the final texture.
Step 7: Salting
All cheese is salted, either by mixing salt into the curd before moulding, rubbing salt onto the surface of the formed cheese, or submerging the cheese in a salt brine. Salt serves multiple purposes:
- Flavour — The most obvious role
- Preservation — Salt inhibits harmful bacteria
- Moisture control — Salt draws out whey, firming the texture
- Rind development — Surface salt helps form the protective rind
Step 8: Aging (Affinage)
This is where cheese transforms from a bland curd into something magnificent. Aging takes place in carefully controlled environments:
- Temperature — Typically 8-15C for most cheeses
- Humidity — Often 85-95% to prevent cracking
- Air circulation — Important for rind development
- Time — From days (fresh cheeses) to years (aged hard cheeses)
During aging, enzymes continue breaking down proteins and fats, creating the complex flavours, aromas, and textures we prize. The rind develops — bloomy white moulds (Brie), washed-rind bacteria (Stinking Bishop), natural grey crusts (Cheddar), or blue veining from deliberate inoculation.
The affineur (the person who tends aging cheeses) turns wheels, monitors humidity, and knows when each cheese is at its peak. This is as much art as science.
Blue Cheese: A Special Case
Blue cheese requires an additional step: the curd is inoculated with Penicillium roqueforti — a mould that grows in the presence of oxygen. After the cheese is formed, it's pierced with long needles to create air channels. The mould colonises these channels, creating the characteristic blue-green veins.
The piercing pattern, timing, and incubation conditions determine how the blue develops — from gentle scattered dots to dramatic radiating veins.
The Cheesemaker's Skill
Reading a recipe for cheesemaking is like reading a recipe for painting. The words describe the process, but the art is in the hands. An experienced cheesemaker reads the milk, feels the curd, smells the developing cheese, and makes hundreds of micro-adjustments throughout the process.
This is why genuine farmhouse cheese varies from batch to batch and season to season. It's not inconsistency — it's life.
Understanding how cheese is made transforms how you taste it. Next time you break open a wheel of Cheddar, notice the layers from the cheddaring. When you cut into a Stilton, follow the veins where the piercing needles entered. The process is written into every slice.