The study of Sartori Rosemary and Olive Oil Asiago represents a compelling intersection between traditional Italian cheesemaking paradigms and the innovative spirit of American artisanal dairy production. As a professional fromager and dairy scientist, one must evaluate this cheese not merely as a commercial food product, but as a complex biological and chemical system. This report provides an exhaustive technical analysis, grounding the Wisconsin-produced "American Original" in the context of its Italian PDO roots while detailing the specific scientific advancements that define its unique identity.
The Rosemary and Olive Oil Asiago produced by the Sartori Cheese Company finds its geographic and cultural origin in Plymouth, Wisconsin, within the United States.[1] While the cheese is taxonomically an Asiago, it is classified as an "American Original" because it adapts the Italian lineage to the specific environmental and regulatory framework of the Midwestern United States.[3] Wisconsin's identity as "America's Dairyland" provides the essential terroir—a combination of soil composition, climate, and agricultural heritage—that facilitates the production of high-quality bovine milk required for such a sophisticated aged product.[4]
To understand the authenticity of this cheese, one must first reference the Protected Designation of Origin (PDO) standards of its namesake. Authentic Italian Asiago (Asiago DOP) is restricted to the provinces of Vicenza, Trento, and parts of Padua and Treviso in Northern Italy.[6] The Sartori iteration, while sharing the name, represents a distinct evolutionary branch. Founded in 1939 by Paolo Sartori, an Italian immigrant, the company utilized the limestone-rich caves of East Main in Plymouth to mimic the cool, humid maturation environments of the Veneto region.[3] This historical bridge allows the cheese to maintain a "familial flavor of its roots" while being firmly established as a product of Wisconsin's dairy landscape.[3]
The climate of Wisconsin, characterized by its temperate summers and harsh winters, necessitates a focus on indoor, highly controlled dairy farming which differs from the high-alpine grazing found in the Asiago Plateau.[3] However, the Sartori family has maintained partnerships with local family farms within a 70-mile radius of their production facilities to ensure that the "local" essence of the milk is preserved, mirroring the European emphasis on proximity between stable and creamery.[2]
The biological substrate for Rosemary and Olive Oil Asiago is 100% bovine milk, specifically sourced from the species Bos taurus.[5] In the context of dairy science, the selection of cow's milk is integral to achieving the desired protein-to-fat ratio necessary for the structural integrity of a hard, aged cheese. The milk utilized in Sartori's production is notable for its high concentration of butterfat and protein, which is a direct result of the specific dietary management and breeding of Wisconsin's dairy herds.[3]
While the traditional Italian PDO standards for Asiago d'Allevo (aged Asiago) often utilize a mixture of whole and skim milk to control fat content, Sartori's approach utilizes whole milk to lean into a richer, creamier profile that satisfies the American palate's preference for "sweet cream" notes.[10] This chemical difference is significant: the presence of additional milkfat in the matrix influences the rate of lipolysis during maturation. The formula for the impact of fat on the moisture in the non-fat substance is a critical metric for fromagers:
where moisture percentage and fat percentage are critical metrics for fromagers. By maintaining a higher fat content, Sartori ensures a "firm yet creamy" texture that differentiates it from the often drier, more crystalline Italian imports.[10] Furthermore, the milk is certified 100% rBST/rBGH-free, ensuring that the natural hormonal balance of the cows is maintained, which can have subtle implications for the consistency of the milk's micellar structure.[16]
The milk source for this specific Asiago is a network of local Wisconsin family farms, which serve as "patron farms" for the Sartori company.[11] These farms typically maintain an average herd size of 75 cows, allowing for a high degree of individual animal care and quality control.[2] This small-scale farming model is essential for maintaining the Grade A standards required for artisanal cheesemaking.[16]
Unlike some traditional European cheeses that rely on raw milk to preserve wild microflora, Sartori utilizes pasteurized milk for this variety.[1] This decision is rooted in both safety regulations and the desire for flavor consistency across large-scale production batches. Pasteurization (typically for 15 seconds) eliminates pathogenic bacteria but also neutralizes certain indigenous enzymes, which the Master Cheesemakers then replace with carefully selected cultures and enzymes to guide the flavor development.[4]
While specific breeds like Holstein, Jersey, and Brown Swiss dominate the Wisconsin landscape, the identity of the milk is defined more by its "freshness" than a single breed requirement. The proximity of the farms (within 70 miles) allows the milk to be processed within hours of milking.[4] This reduces the proliferation of psychrotrophic bacteria, which can produce heat-stable lipases that lead to bitter off-flavors in aged cheeses. The dairy science perspective emphasizes that the high protein content (specifically alpha-caseins and beta-caseins) in this milk provides the robust lattice required to support the inclusion of the rosemary and olive oil rub on the rind without compromising the interior paste.[3]
| Component | Standard | | :--- | :--- | | Treatment | Pasteurized [1] | | Grade | Grade A [16] | | Hormone Status | rBST/rBGH-free [16] | | Origin | Wisconsin, USA [1] | | Herd Management | Local Family Farms [11] |
In the production of Rosemary and Olive Oil Asiago, Sartori primarily utilizes microbial enzymes as the coagulant, although certain technical specifications for retail wedges may indicate "animal" enzymes depending on the specific batch and target market.[1] This enzymatic choice is a critical variable in the cheese's proteolysis—the process of breaking down proteins into peptides and amino acids.
The coagulation of milk is achieved by the action of chymosin, which cleaves the kappa-casein amino acid bond. This cleavage removes the hydrophilic "hairy layer" of the casein micelle, causing the micelles to aggregate in the presence of calcium ions to form a curd.[4] The use of microbial rennet is particularly advantageous for creating a vegetarian-friendly product while ensuring a consistent rate of curd tension development.[4]
A defining characteristic of Sartori's "Italian-style" hard cheeses is the addition of lipase enzymes. Lipase facilitates the hydrolysis of triglycerides into free fatty acids (FFAs). In the case of Asiago, this enzymatic activity is responsible for the "pointed sharpness" and piquant aroma that balances the sweetness of the Wisconsin milk.[10] During the minimum six-month aging period, these enzymes continue to work within the matrix, slowly transforming the flavor profile from "mild and buttery" to "nutty and savory".[5]
The maturation of Rosemary and Olive Oil Asiago is a carefully managed temporal process, with a minimum requirement of six months.[5] This duration classifies the cheese as a "medium-aged" or Mezzano style according to traditional Italian nomenclature, which typically requires 4 to 6 months of aging.[6]
In some instances, certain wheels may be selected for "Extra Aging," extending the period to 12 or 15 months.[7] This extended maturation results in a harder, more crystalline structure as moisture continues to evaporate and tyrosine crystals begin to precipitate from the protein matrix.[4]
The moisture content of Rosemary and Olive Oil Asiago is a vital technical specification that determines its shelf life, texture, and legal classification. According to U.S. Federal Standards, Asiago aged for at least six months must maintain a maximum moisture level of 45%.[19]
As the cheese ages, it undergoes syneresis and evaporation, leading to a reduction in water activity. For the Sartori variety, the target moisture is typically in the range of 35% to 42%, aligning it with "hard" or "firm" artisan classifications.[8] This moisture level is sufficient to allow for a "creamy" mouthfeel while being low enough to inhibit the growth of most spoilage organisms.[10]
| Nutritional Data | Value per 1 oz (28g) | | :--- | :--- | | Total Fat | 9g (12% DV) [15] | | Saturated Fat | 5g (25% DV) [15] | | Cholesterol | 25mg (8% DV) [15] | | Sodium | 190mg (8% DV) [15] | | Total Carbohydrates | 0g [18] | | Protein | 7g [15] | | Calcium | 240mg (20% DV) [13] |
The lack of carbohydrates (specifically lactose) is a result of the extensive fermentation process, where bacteria consume the milk sugars and convert them into lactic acid, making the cheese naturally low in lactose and suitable for many sensitive individuals.[20]
Rosemary and Olive Oil Asiago is a highly specialized product that occupies multiple categorical spaces within the world of fromagerie. Its identity is defined as much by its base style as by its artisan finish.
Unlike Asiago Pressato, which is a "fresh cheese" or "melting cheese" aged for less than 40 days, the Sartori Rosemary and Olive Oil variant is a "snacking" or "grating" cheese designed for complex flavor delivery rather than simple meltability.[6]
The flavor profile of this cheese is a masterclass in balance, combining the agrarian notes of Wisconsin milk with the Mediterranean aromatics of its rub. From a sensory perspective, the experience is layered, evolving from the first aromatic contact to the long, savory finish.
The initial impact is dominated by a "pronounced herbal scent" and an "aromatic burst of rosemary".[8] This is not a sharp, dry herb flavor but rather a "piney and floral" essence that is smoothed by the "earthy richness of Italian olive oil".[8] The base cheese contributes "nutty, fruity, and sweet cream" tones that form the backbone of the experience.[5]
As the cheese matures, it develops a "savory high note" and a "gentle sharpness".[8] The dairy scientist identifies these as the result of protein degradation into umami-rich amino acids like glutamate. The finish is described as "mellow and buttery," a characteristic of the whole milk and the lipid migration from the olive oil rub into the outer millimeters of the cheese paste.[8]
| Sensory Attribute | Description | | :--- | :--- | | Aroma | Piney, floral, rosemary-forward, slightly pungent [8] | | Primary Taste | Nutty, fruity, sweet cream [12] | | Secondary Taste | Earthy, savory, buttery [8] | | Finish | Mild sharpness, caramelized sweetness [5] |
The texture of Rosemary and Olive Oil Asiago is "firm yet creamy," a duality that is difficult to achieve in aged cheeses.[15] This structural profile is the result of carefully controlled syneresis (the expulsion of whey) during the manufacturing process.
A cut wedge of the cheese breaks "cleanly," similar to an aged cheddar, indicating a well-developed but slightly brittle protein matrix.[10] However, upon mastication, the cheese demonstrates a high degree of solubility. It "feels crumbly on the tongue at first, but it dissolves into smoothness," leaving a rich, fatty mouthfeel due to the integrated olive oil and high milkfat.[10]
In older wheels or those aged toward the 12-month mark, consumers may encounter "crunchy crystals".[4] These are not grains of salt, but rather crystals of calcium lactate (in the case of this Asiago) or tyrosine (in even longer-aged varieties like SarVecchio).[4] These crystals are a technical marker of a high-quality, well-matured cheese and provide a pleasing tactile contrast to the creamy paste.[4] The rind is "herb-flecked" and slightly more resilient, intended to be eaten to provide a full-spectrum sensory experience.[9]
The heat treatment protocol for Sartori Rosemary and Olive Oil Asiago is strictly defined as pasteurization.[1] In the context of American dairy regulations (21 CFR), pasteurization is the process of heating every particle of milk to a specific temperature for a specific time to ensure the destruction of pathogens.
While some purists argue for raw milk in Asiago to capture more complex terroir notes, the pasteurization process at Sartori is offset by the quality of the "Grade A" milk and the skill of the cheesemakers in guiding the secondary fermentation and aging.[4]
In a professional fromager's assessment, distinguishing between the natural evolution of an aged, oil-rubbed cheese and actual spoilage is paramount for food safety and quality assurance.
| Indicator | Inherent (Safe) | Spoilage (Discard) | | :--- | :--- | :--- | | Appearance | White crystals, herb flecks [16] | Pink/black fuzzy mold, sliminess [24] | | Aroma | Nutty, piney, slightly pungent [8] | Musty, "glue-like," caustic ammonia [24] | | Texture | Firm, crumbly, crystalline [10] | Soft, mushy, or excessively greasy [24] |
The pairing of Rosemary and Olive Oil Asiago requires an understanding of how tannins, acidity, and alcohol interact with the cheese's high fat and herbal profile.
Beer offers a unique pairing opportunity due to carbonation, which acts as a mechanical cleanser for the oil-rubbed rind.
In constructing a professional cheese board, one must select accompaniments that either bridge the flavors of the cheese or provide a stark, pleasing contrast.
The Sartori Cheese Company is a fourth-generation family-owned business that has been a cornerstone of the Wisconsin dairy industry since 1939.[2]
Paolo Sartori, an Italian immigrant, founded the company after learning the cheesemaking trade and settling in Wisconsin due to its ideal climate for dairy farming.[3] The company has been led by four generations of the Sartori family: Paolo, Joe, Jim, and currently Bert.[3] In 1942 and 1946, Sartori revolutionized the industry by inventing and patenting machines for "cheese curd mixing and stretching," which allowed for consistent, high-quality production of Italian-style cheeses across the United States.[3]
Wisconsin is the only state in the U.S. with a Master Cheesemaker program, modeled after the rigorous European apprenticeship systems. Sartori employs several Master Cheesemakers, including Mike Matucheski, who is specifically certified in the production of Parmesan and Asiago.[4] This level of expertise is what allows for the complex "hand-finishing" processes, such as the application of rosemary and olive oil, to be executed with artisanal precision.[10]
While Sartori produces "classic" Italian cheeses, they are most famous for their "American Originals," such as the BellaVitano and this flavored Asiago.[3] The company has won hundreds of awards, with the Rosemary and Olive Oil Asiago specifically taking First Place at the 2019 Wisconsin State Fair and being named Grand Champion in 2010.[18] The family crest on the packaging contains a "Ship" (representing the Finlandia that brought Paolo to America) and "Cows" (honoring the local farmers).[3]
Correct pronunciation is a hallmark of the professional fromager, showing respect for both the brand's heritage and the cheese's linguistic roots.
In professional settings, the pronunciation of "Asiago" often shifts depending on the speaker's background. While the Italian pronunciation emphasizes a softer "s" (almost like "ai-ah-go"), the standard American "Dictionary-Style" respelling used in trade is AH-zee-AH-go.[31]
This technical report underscores the complexity of Sartori's Rosemary and Olive Oil Asiago as a product of both scientific rigor and generational craftsmanship. By maintaining high "Grade A" standards and utilizing local Wisconsin milk, Sartori has successfully created a cheese that honors the spirit of the Italian DOP while forging a new identity in the American artisanal market.