Pecorino Romano DOP

Pecorino Romano is a hard, cooked-curd sheep's milk cheese with Protected Designation of Origin (DOP). Despite its name suggesting Rome, production is now concentrated in Sardinia (approximately 90% of total output) under strict DOP regulations. Lazio and the Tuscan island of Giglio are also permitted production zones.

Character and Use

Pecorino Romano is sharp, intensely salty, and has a dry, granular texture suitable for grating. The salt level (typically 2–3% by weight) is significantly higher than Parmigiano Reggiano (approximately 1.7%). This has two practical consequences:

1. Season sparingly when Pecorino is present — the pasta water should be lightly salted, not the usual aggressive amount.
2. Do not substitute 1:1 with Parmigiano — Pecorino Romano produces a sharper, saltier result that is characteristic of Roman pasta, not a defect.

Roman Pasta Quartet

Pecorino Romano is the canonical cheese for all four Roman pasta dishes:

• Cacio e Pepe: cheese and pepper — the simplest expression
• Gricia: cheese, guanciale, pepper — the ancestral form
• Amatriciana: gricia with tomatoes
• Carbonara: gricia with eggs

In all four, Pecorino is grated fine and emulsified into the sauce off heat. This prevents the cheese from seizing and turning grainy.

Comparison with Parmigiano Reggiano

	Pecorino Romano	Parmigiano Reggiano
Milk	Sheep	Cow
Aging minimum	5–8 months	12 months
Salt content	~2.5%	~1.7%
Price at supermarket	~€13.50/kg	~€17.50/kg
Flavour profile	Sharp, salty, pungent	Nutty, umami, complex

Cost Context

At Italian supermarkets (Q1 2025), Pecorino Romano DOP is approximately €13.50/kg for wedge or sliced format. Pre-grated is typically higher per kg. For pasta applications, always buy a wedge and grate fresh — pre-grated loses aromatics quickly.

A typical pasta recipe for four uses 60–80g, costing approximately €0.81–1.08.