Making Romano cheese at home is a multi-day project that rewards you with a sharp, tangy hard cheese perfect for grating. The process follows the same basic steps as most hard cheeses (coagulating milk, cutting curds, pressing, and aging) but with a few key differences: higher cooking temperatures, very small curd sizes, and a long aging period that builds Romano’s signature piquant bite. Here’s how to do it from start to finish.
Choosing Your Milk
Traditional Pecorino Romano is made from whole sheep’s milk, primarily produced in Sardinia, Italy. If you can source sheep’s milk, you’ll get the closest flavor to the real thing. Most home cheesemakers in North America use whole cow’s milk instead, which produces a milder cheese sometimes labeled simply “Romano.” Either way, use pasteurized whole milk, not ultra-pasteurized, since ultra-pasteurization damages the milk proteins and prevents a good curd from forming. A gallon of milk yields roughly one pound of finished cheese.
What You’ll Need
- Milk: 2 gallons whole milk (sheep or cow)
- Starter culture: Thermophilic culture, which thrives at the higher temperatures Romano requires
- Lipase powder: This enzyme breaks down milk fat into free fatty acids, creating Romano’s sharp, peppery flavor. Without it, your cheese will taste flat. Dissolve it in cool water 20 minutes before use.
- Rennet: Liquid or tablet, diluted in cool non-chlorinated water
- Cheese salt: Non-iodized salt (iodine inhibits the cultures)
- Equipment: Large stainless steel pot, thermometer, long knife or curd cutter, cheesecloth, cheese mold, and a cheese press
Heating and Culturing the Milk
Warm your milk to about 38°C (100°F), then sprinkle your thermophilic starter culture over the surface. Let it rehydrate for a minute or two before stirring it in with gentle up-and-down strokes. Allow the milk to ripen for about 30 to 45 minutes. During this time, the bacteria begin producing lactic acid, which lowers the pH and sets the stage for coagulation. Add your dissolved lipase powder at this stage as well, stirring it in thoroughly.
Coagulation and Cutting the Curd
Add your diluted rennet and stir gently for about 30 seconds, then let the milk sit undisturbed. After 30 to 45 minutes, you should have a clean break: when you insert a finger or knife at an angle, the curd should split cleanly rather than looking like yogurt. This tells you the milk has set properly.
Now cut the curd. This is where Romano diverges from softer cheeses. You want to cut quite vigorously until the curds are the size of rice grains. Smaller curds release more whey, which is what gives hard cheeses like Romano their dense, dry texture. Use a whisk or curd cutter and work through the mass thoroughly. Don’t rush this step, but don’t be gentle either. The smaller and more uniform your curds, the better your final texture.
Cooking the Curds
Romano is a high-temperature cooked cheese, and this cooking step is critical. Slowly raise the temperature to 46°C (about 115°F) over the course of 50 minutes, stirring frequently to prevent the tiny curds from matting together. Hold at 46°C until the pH drops to around 6.1 to 6.2. If you don’t have a pH meter, this stage typically takes another 15 to 30 minutes of holding. The curds should feel firm and slightly squeaky when you press a handful together.
The high cooking temperature expels even more moisture from the curds and helps develop the firm, granular texture that makes aged Romano so easy to grate. Stir continuously during the cook to keep curds separated.
Draining and Molding
Once the curds reach the right firmness and acidity, pour off the whey and transfer the curds into a cheesecloth-lined mold. As the whey drains, the acidity continues rising, which further tightens the curd structure and helps the cheese develop its characteristic dense body. Pack the curds firmly into the mold, folding the cheesecloth over the top.
Pressing: A Gradual Increase
Romano requires a staged pressing process that slowly increases pressure over many hours. This squeezes out remaining whey and fuses the curds into a solid wheel. A typical schedule looks like this:
- 5 pounds for 15 minutes: A light initial press to begin shaping the wheel
- 10 pounds for 30 minutes: Remove the cheese, unwrap and flip it, re-wrap in fresh cheesecloth, and press again
- 20 pounds for 2 hours: Flip and re-dress again before increasing weight
- 40 pounds for 12 hours: This final long press creates the dense, tight texture you want
Flipping the cheese between each stage ensures even moisture removal and prevents one side from becoming denser than the other. After the final press, your wheel should feel solid and smooth on the surface.
Salting the Cheese
Romano is traditionally dry-salted rather than soaked in brine. Rub coarse, non-iodized salt generously over the entire surface of the wheel. Repeat this daily for several days, turning the cheese each time. The salt draws out additional moisture, forms a protective rind, slows unwanted bacterial growth, and begins seasoning the cheese from the outside in. Finished Romano has a notably high sodium content (around 400 mg per ounce), and this salting phase is largely responsible.
The target pH for the finished cheese falls between 5.0 and 5.4, which places it in the same acidity range as Parmigiano Reggiano and Pecorino. This relatively low pH is part of what makes hard aged cheeses shelf-stable and safe.
Aging for Flavor
After salting, the cheese needs to age in a cool, humid environment. A cheese cave, wine fridge, or any space you can keep around 10 to 13°C (50 to 55°F) with 80 to 85 percent humidity will work. For a table cheese you can slice and eat, age for at least 5 months. For the hard, crumbly grating cheese most people associate with Romano, plan on 8 to 12 months.
During aging, flip your wheel a few times per week and wipe down the surface if any unwanted mold appears (a cloth dampened with vinegar works). Some surface mold is normal and harmless, but you want to manage it so it doesn’t penetrate the rind. You can also coat the wheel in cheese wax after the salting phase to simplify maintenance, though traditional Romano develops a natural rind.
The aging process is where lipase really earns its place. Over months, the enzyme continues breaking down fats in the cheese, releasing short-chain fatty acids that give Romano its sharp, slightly pungent character. The longer you age it, the more intense that flavor becomes. A young wheel will taste mildly tangy. At 10 months, it will have the assertive bite you’d recognize from a wedge at the store.
What Makes Romano Taste Like Romano
If you’ve ever wondered why Romano tastes so different from, say, Parmesan, lipase is the main answer. This enzyme targets the fat in milk and breaks it into free fatty acids, each contributing a different flavor note. Short-chain fatty acids produce sharp, tangy, almost barnyard flavors. Medium-chain fatty acids add a broader pungency. The combination, intensified by months of aging, creates that distinctive Romano sharpness that cuts through pasta dishes and salads.
Sheep’s milk naturally contains more fat and different fat structures than cow’s milk, which is why authentic Pecorino Romano made from sheep’s milk has a more complex, more aggressive flavor than cow’s milk versions. If you’re using cow’s milk, you can compensate somewhat by using a bit more lipase powder, though the result will always be milder.
Storage After Aging
Once your Romano reaches the flavor intensity you like, you can slow down the aging by wrapping it tightly and refrigerating it. A whole wheel stored in the fridge will keep for months. Cut pieces wrapped in wax paper or parchment inside a loose plastic bag will stay good for several weeks. Grate a portion and freeze it in a sealed container for the most convenient everyday use. The low moisture and high salt content of Romano make it one of the more forgiving cheeses to store long-term.