What You Need to Know
Penicillium roqueforti spores metabolize milk proteins (caseins) via extracellular proteases and milk fats via lipases, producing methyl ketones (2-heptanone, 2-nonanone) and free fatty acids that define blue cheese aroma. The fungus requires microaerophilic conditions maintained by mechanical needling.
This technique transforms firm curds into creamy, blue-veined cheeses with balanced saltiness and umami depth, essential for Roquefort, Gorgonzola, and Stilton.
Key Parameters
Temperature
10°C
4°C - 14°C
Time
2-3 months
3 weeks - 6 months
Equipment
Sterile inoculation needlesHumidity-controlled caveFood-grade P. roqueforti culture
Steps
- 1.
Roquefort Dressing (French): Provides emulsifying peptides for stable viscosity
- 2.
Pear & Blue Cheese Tart (Normandy): Balances fruit sweetness with umami depth
The Science
Primary Reaction
Proteolysis of casein