Processed cheese

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A 5-pound block of Provel "pasteurized process cheddar, swiss, and provolone cheese" Provel.jpg
A 5-pound block of Provel "pasteurized process cheddar, swiss, and provolone cheese"
Cheese spreads, such as this one, may be considered processed cheese in the broad sense Eru goudkuipje sambal.jpg
Cheese spreads, such as this one, may be considered processed cheese in the broad sense
Cheez Whiz is a processed cheese used for dips and Philadelphia cheesesteaks 2021-08-12 17 18 17 A jar of Kraft Cheez Whiz in the Franklin Farm section of Oak Hill, Fairfax County, Virginia.jpg
Cheez Whiz is a processed cheese used for dips and Philadelphia cheesesteaks

Processed cheese (also known as process cheese; related terms include cheese food, prepared cheese, or cheese product) is a product made from cheese mixed with an emulsifying agent (actually a calcium chelator). Additional ingredients, such as vegetable oils, unfermented dairy ingredients, salt, food coloring, or sugar may be included. As a result, many flavors, colors, and textures of processed cheese exist. Processed cheese typically contains around 50 to 60% cheese and 40 to 50% other ingredients. [1] [2]

Contents

History

Processed cheese was first developed in Switzerland in 1911, when Walter Gerber and Fritz Stettler, seeking a cheese with longer shelf life and influenced by fondue and cheese sauces, added sodium citrate to melted Emmentaler cheese and found that the emulsified cheese sauce could be re-cooled into a solid again. [3] [4] Shortly after, in 1916, Canadian-American businessman James L. Kraft applied for the first U.S. patent covering a new method of storing cheese, which halts the maturation process by sterilization. [5] [6]

Advantages

Slices of processed cheese Processed cheese 1.jpg
Slices of processed cheese

Processed cheese has several technical advantages over natural cheese, [7] including a far longer shelf life, resistance to separating when cooked (meltability), and a uniform look and physical behavior. Its mass-produced nature also provides a dramatically lower cost—to producers and consumers alike—than conventional cheesemaking. This, in turn, enables industrial-scale production volumes, lower distribution costs, a steadier supply, and much faster production time compared to traditional cheeses.

Because processed cheese does not separate when melted, it is used as an ingredient in a variety of dishes. Unlike some unprocessed cheeses, heating does not alter its taste or texture.

Chemistry

Processed cheese is made with the goal of being meltable without the fat separating from the protein. A traditional cheese consists of individual fat globules trapped in a network of casein, with calcium holding the casein molecules together. With prolonged heating, the typical result is a lumpy combination of protein gel and liquid fat on top. [8] Processed cheese adds a calcium-sequestering agent, often mistakenly called an "emulsifier" ("emulsifying salt" and "emulsifying agent" are correct, however), [9] to stop calcium from being able to hold this casein network together. Smaller groups of linked casein molecules are then able to better mix into the fat when melted, forming microscopic droplets instead of large lumps. Common calcium-sequestering agents include sodium phosphate, potassium phosphate, tartrate, and citrate. [10] (Tartaric acid found in wine is the original calcium-sequestering agent used in Swiss fondue.) [8]

The longer shelf-life is not directly because of the emulsifying agent, but because it allows existing heat-based sterilization methods, such as canning, to be applied to the cheese without forming lumps. [6]

Sale and labeling

Processed cheese is often sold in blocks and packs of individual slices, often separated by wax paper, or with each slice individually wrapped by machine. Processed cheese was initially sold in unpressurized cans; [6] some is still sold this way. [11]

United Kingdom

In the United Kingdom, processed cheese is typically sold in individually wrapped slices, often referred to as "singles",[ citation needed ] or in foil-wrapped portions. Dairylea and The Laughing Cow are leading brands.

United States

American cheese is a processed cheese. Pictured here in a single wrapped slice. Single wrapped slice of processed cheese.jpg
American cheese is a processed cheese. Pictured here in a single wrapped slice.

In 1916, Canadian James L. Kraft applied for the first U.S. patent for a method of making processed cheese. [6] [12] [13] Kraft Foods Inc. developed the first commercially available, shelf-stable, sliced processed cheese; it was introduced in 1950. The first commercially available individually wrapped cheese slices were introduced in the US by Clearfield Cheese Co. in 1956. [14] These forms of processed cheese have become ubiquitous in U.S. households ever since, most notably used for cheeseburgers and grilled cheese sandwiches because of its ability to cook evenly, distribute/stretch smoothly, and resist congealing, unlike traditional cheddar cheeses. Competitors lobbied unsuccessfully to require processed cheese be labeled "embalmed cheese". [15]

The best known processed cheese in the United States is marketed as American cheese by Kraft Foods, [lower-alpha 1] Borden, and other companies. It is yellow or off-white, mild, has a medium consistency and melts easily. It is typically made from a blend of cheeses, most often Colby and cheddar. Another type of processed cheese created in the United States is Provel pizza cheese, which uses cheddar, Swiss, and provolone cheeses as flavorants. [16] Provel cheese is commonly used in St. Louis-style pizza. [17]

The high proportion of additives in processed cheese and similar products (e.g. unfermented dairy products, emulsifiers, oils, salts, and colors) means that some products made in this way cannot legally be labeled as cheese in many countries, even though similar products containing a higher percentage of cheese can be.

In the United States, the term "processed cheese" refers to products with the highest cheese content, made from cheese, up to 5% milkfat, and other allowed additives. Terms such as "cheese food" or "cheese spread" refer to products with lower amounts of cheese. [18] "Cheese product" is an unregulated term used by some manufacturers for products that do not meet any of the standards.

United States

A gift pack containing several varieties of labeled process cheese.

Upper left: a "pasteurized process cheese food" and a "pasteurized processed cheese spread"

Upper center: a "pasteurized process cheese spread Havarti-type flavor"

Lowermost right: a "pasteurized process cheese food with jalapeno peppers" Hickory Farms Product.jpg
A gift pack containing several varieties of labeled process cheese.

Upper left: a "pasteurized process cheese food" and a "pasteurized processed cheese spread"

Upper center: a "pasteurized process cheese spread Havarti-type flavor"

Lowermost right: a "pasteurized process cheese food with jalapeño peppers"

In the United States, processed cheese is defined, categorized, and regulated by the Food and Drug Administration (FDA) under the U.S. Code of Federal Regulations Title 21, Section 133 ("Cheeses and Cheese-Related Products"). Three of the main classes are: [18]

Pasteurized process cheese (§133.169)
PPC is a product made from one or more cheeses (excluding certain cheeses such as cream cheese and cottage cheese, but including American cheese) [lower-alpha 2] , mixed with emusifying salts.
Acceptable additives include acidifying agents, source of milkfat (cream, anhydrous milkfat, dehydrated cream), water, salt, artificial color, spices or flavorings (other than those simulating the flavor of cheese), and enzyme-modified cheese. PPC in consumer-sized packages can also include mold inhibitor and lecithin. Added milk fat must not exceed 5% by weight.
In the final product, moisture must not be more than 41 percent of the weight, and fat content not less than 49 percent. The moisture and fat contents must also fall into the acceptable range for its source cheese(s).
Pasteurized process cheese food (§133.173)
PPCF is made from one or more of the cheeses available for pasteurized process cheese composing not less than 51 percent of the final weight, mixed with one or more optional dairy ingredients such as cream, fluid milk, or whey.
Acceptable additives include emulsifying salts, acidifying agents, water, salt, artificial color, spices or flavorings (other than those simulating the flavor of cheese), and enzyme-modified cheese. PPCF in consumer-sized packages can also include mold inhibitor and lecithin.
The final solid form must be less than 44 percent moisture and have a fat content greater than 23 percent.
Pasteurized process cheese spread (§133.179)
PPCS is made similarly to pasteurized process cheese food but must be spreadable at 70 °F (21 °C). Moisture must be between 44 and 60 percent of the total weight, and fat content greater than 20 percent. Nisin may be added.

Use of unregulated terms

The FDA does not maintain a standard of identity for either "pasteurized prepared cheese product", a designation which particularly appears on many Kraft products, or "pasteurized process cheese product", a designation which appears particularly on many American store- and generic-branded singles. Since by using undefined terms the manufacturers technically avoid being accused of false labeling, products carrying such labels are free to use milk protein concentrate (MPC) in their formulations, an ingredient the FDA does not permit in processed cheese. The desire to use inexpensive imported milk protein concentrate to replace some of the cheese in their products is noted as motivation for the manufacturers to introduce these and similar terms, and for the relabeling of some products. [19] [20] After an FDA Warning Letter protesting Kraft's use of MPC in late 2002, [21] some varieties of Kraft Singles formerly labeled "pasteurized process cheese food" became "pasteurized prepared cheese product", Velveeta was relabeled from "pasteurized process cheese spread" to "pasteurized prepared cheese product", and Easy Cheese from "pasteurized process cheese spread" to "pasteurized cheese snack".

See also

Notes

  1. Current Kraft Singles do not quality as "process cheese" legally; see § Legal definitions below.
  2. Under the U.S. Code of Federal Regulations Title 21, Article 133, Section 169 (Pasteurized process cheese), the allowed usage of the term "American Cheese" for certain types of "Pasteurized process cheese" is detailed. Specifically, in paragraph (e)(2)(ii) of section 133.169, it states, "In case it is made of cheddar cheese, washed curd cheese, colby cheese, or granular cheese or any mixture of two or more of these, it may be designated 'Pasteurized process American cheese'; or when cheddar cheese, washed curd cheese, colby cheese, granular cheese, or any mixture of two or more of these is combined with other varieties of cheese in the cheese ingredient, any of such cheeses or such mixture may be designated as 'American cheese'."

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Dairy products or milk products, also known as lacticinia, are food products made from milk. The most common dairy animals are cow, water buffalo, nanny goat, and ewe. Dairy products include common grocery store food around the world such as yogurt, cheese, milk and butter. A facility that produces dairy products is a dairy. Dairy products are consumed worldwide to varying degrees. Some people avoid some or all dairy products because of lactose intolerance, veganism, or other health reasons or beliefs.

<span class="mw-page-title-main">Milk</span> White liquid produced by the mammary glands of mammals

Milk is a white liquid food produced by the mammary glands of mammals and the caecilian Siphonops annulatus. It is the primary source of nutrition for young mammals before they are able to digest solid food. Immune factors and immune-modulating components in milk contribute to milk immunity. Early-lactation milk, which is called colostrum, contains antibodies that strengthen the immune system and thus reduce the risk of many diseases. Milk contains many nutrients, including protein and lactose.

<span class="mw-page-title-main">Pizza cheese</span> Cheese for use specifically on pizza

Pizza cheese encompasses several varieties and types of cheeses and dairy products that are designed and manufactured for use specifically on pizza. These include processed and modified cheese, such as mozzarella-like processed cheeses and mozzarella variants. The term can also refer to any type of cheese suitable for use on pizza. The most popular cheeses used in the preparation of pizza are mozzarella, provolone, cheddar and Parmesan. Emmental, pecorino romano and ricotta are often used as toppings, and processed pizza cheeses manufactured specifically for pizza are mass-produced. Some mass-produced pizza cheeses are frozen after manufacturing and shipped frozen.

<span class="mw-page-title-main">Casein</span> Family of proteins found in milk

Casein is a family of related phosphoproteins that are commonly found in mammalian milk, comprising about 80% of the proteins in cow's milk and between 20% and 60% of the proteins in human milk. Sheep and cow milk have a higher casein content than other types of milk with human milk having a particularly low casein content.

<span class="mw-page-title-main">Buttermilk</span> Fermented dairy drink

Buttermilk is a fermented dairy drink. Traditionally, it was the liquid left behind after churning butter out of cultured cream. As most modern butter in western countries is not made with cultured cream but uncultured sweet cream, most modern buttermilk in western countries is cultured separately. It is common in warm climates where unrefrigerated milk sours quickly.

<span class="mw-page-title-main">Kraft Dinner</span> Boxed macaroni and cheese product

KD in Canada, Kraft Mac & Cheese in the United States, Australia and New Zealand, Mac and Cheese in the United Kingdom and internationally, is a nonperishable, packaged macaroni and cheese product. It is made by Kraft Foods Group and traditionally cardboard-boxed with dried macaroni pasta and a packet of processed cheese powder. It was introduced under the Kraft Dinner name simultaneously in both Canada and the U.S. in 1937. The brand is particularly popular with Canadians, who consume 55% more boxes per capita than Americans.

<span class="mw-page-title-main">Cheez Whiz</span> Trademarked processed cheese

Cheez Whiz is a brand of processed cheese sauce or spread produced by Kraft Foods. It was developed by a team led by food scientist Edwin Traisman (1915–2007). It was first sold in 1952, and with some changes in formulation continues to be in production today.

<span class="mw-page-title-main">Trisodium citrate</span> Chemical compound

Trisodium citrate has the chemical formula of Na3C6H5O7. It is sometimes referred to simply as "sodium citrate", though sodium citrate can refer to any of the three sodium salts of citric acid. It possesses a saline, mildly tart flavor, and is a mild alkali.

<span class="mw-page-title-main">Kraft Singles</span> Processed cheese product

Kraft Singles is a brand of processed cheese product manufactured and sold by Kraft Heinz. Introduced in 1950, the individually wrapped "slices" are not really slices off a block, but formed separately in manufacturing.

<span class="mw-page-title-main">Velveeta</span> Pasteurized prepared cheese product by Kraft

Velveeta is a brand name for a processed cheese similar to American cheese. It was invented in 1918 by Emil Frey (1867-1951) of the Monroe Cheese Company in Monroe, New York. In 1923, The Velveeta Cheese Company was incorporated as a separate company. In 1925, it advertised two varieties, Swiss and American. The firm was purchased by Kraft Foods Inc. in 1927.

<span class="mw-page-title-main">American cheese</span> Type of processed cheese

American cheese is a type of processed cheese made from cheddar, Colby, or similar cheeses, in conjunction with sodium citrate, which permits the cheese to be pasteurized without its components separating. It is mild with a creamy and salty flavor, has a medium-firm consistency, and has a low melting point. It is typically yellow or white in color; yellow American cheese is seasoned and colored with annatto.

<span class="mw-page-title-main">Calcium caseinate</span> Chemical compound

Calcium caseinate is one of several milk proteins derived from casein in skim and 1% milk. Calcium caseinate has a papery, sweet and overall bland flavor, and is primarily used in meal preparation and fat breakdown. Caseinates are produced by adding an alkali to another derivative of casein, acid casein. The type of caseinate is determined by the cation added alongside the acid casein. Other cations used to form caseinates besides calcium include ammonium, potassium, and sodium.

<span class="mw-page-title-main">Easy Cheese</span> Canned processed cheese product

Easy Cheese is the trademark for a processed cheese spread product distributed by Mondelēz International. It is also commonly referred to by generic terms such as "spray cheese", "squirt cheese" or "cheese in a can". Easy Cheese is packaged in a metal can filled with air covered with a plastic cap that reveals a straight, flexible nozzle where the cheese is extruded.

<span class="mw-page-title-main">Government cheese</span> Commodity cheese controlled by the government of the United States

Government cheese is processed cheese provided to welfare beneficiaries, Food Stamp recipients, and the elderly receiving Social Security in the United States, as well as to food banks and churches. This processed cheese was used in military kitchens during World War II and has been used in schools since the 1950s.

<i>Pasta filata</i> Technique in the manufacture of a family of Italian cheeses

Pasta filata is a technique in the manufacture of a family of Italian cheeses also known in English as stretched-curd, pulled-curd, and plastic-curd cheeses. Stretched curd cheeses manufactured using the pasta filata technique undergo a plasticising and kneading treatment of the fresh curd in hot water, which gives the cheese its fibrous structure.

<span class="mw-page-title-main">Cheese analogue</span> Replacement for cheese

Cheese analogues are products used as culinary replacements for cheese. They are usually products made by blending other fats or proteins and used in convenience foods. The category includes vegan cheeses as well as some dairy-containing products that do not qualify as traditional cheeses, such as processed cheese. These foods may be intended as replacements for cheese, as with vegan products, or as alternatives, as in the case of products used for salad bars and pizza-making, that may have other properties such as lower cholesterol content or different melting points that make them attractive to businesses.

<span class="mw-page-title-main">Granular cheese</span> Type of cheese

Granular cheese, also known as stirred curd cheese and hard cheese, is a type of cheese produced by repeatedly stirring and draining a mixture of curd and whey. It can refer to a wide variety of cheeses, including the grana cheeses such as Parmigiano-Reggiano (pictured) and various others.

Milk protein concentrate (MPC) is any type of concentrated milk product that contains 40–90% milk protein. The United States officially defines MPC as "any complete milk protein concentrate that is 40 percent or more protein by weight." In addition to ultrafiltered milk products, the MPC classification includes concentrates made through other processes, such as blending nonfat dry milk with highly concentrated proteins, such as casein.

<span class="mw-page-title-main">Vegan cheese</span> Cheese-like substance made without animal products

Vegan cheese is a category of non-dairy, plant-based cheese analogues. Vegan cheeses range from soft fresh cheeses to aged and cultured hard grateable cheeses like plant-based Parmesan. The defining characteristic of vegan cheese is the exclusion of all animal products.

<span class="mw-page-title-main">Sour cream</span> Fermented dairy product

Sour cream is a dairy product obtained by fermenting regular cream with certain kinds of lactic acid bacteria. The bacterial culture, which is introduced either deliberately or naturally, sours and thickens the cream. Its name comes from the production of lactic acid by bacterial fermentation, which is called souring. Crème fraîche is one type of sour cream with a high fat content and less sour taste.

References

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  2. Costello, Rose (22 October 2019). "What's really in a packet of processed cheese slices?". Irish Times. Retrieved 26 June 2020.
  3. Ustunol, Zey (April 2009). "Processed Cheese: What is that Stuff Anyway?" (PDF). Michigan Dairy Review. 14 (2). Michigan State University. Retrieved 4 December 2021.
  4. Schmelzkäse/ Fromage fondu in the online Culinary Heritage of Switzerland database.
  5. "Kraft Foods Ltd". Private Revenue Perfins of Victoria. Article includes historical information about a stamp used by Kraft Foods Ltd. in 1932 in Australia. Retrieved 15 January 2021.{{cite web}}: CS1 maint: others (link)
  6. 1 2 3 4 Kraft, James Lewis, "Process of sterilizing cheese and an improved product produced by such process," U.S. patent no. 1,186,524 (filed: March 25, 1916 ; issued: June 6, 1916).
    However, Kraft's process did not include the use of emulsifiers in processed cheese. The first U.S. patent for the use of emulsifiers was awarded in 1921 to George Herbert Garstin:
  7. AP-42, 9.6.1: Natural And Processed Cheese (PDF), US EPA, July 1997
  8. 1 2 Rhylander, Summer (14 April 2021). "Why Sodium Citrate is the Secret to the Silkiest Cheese Sauce". The Cheese Professor.
  9. John R. Sevenich (1993-11-08). Quote: 'Sodium phosphates are not emulsifiers in the strict sense, i.e. they are not surface-active substances, yet they are commonly included in the group of ingredients called "emulsifying agents". (See Caric et al., Food Microstructure, Vol. 4, pgs. 297-312 (1985).' US patent No. 5,466,477 — Preparation of process cheese using liquid sodium phosphate
  10. Deshwal, GK; Gómez-Mascaraque, LG; Fenelon, M; Huppertz, T (23 February 2023). "A Review on the Effect of Calcium Sequestering Salts on Casein Micelles: From Model Milk Protein Systems to Processed Cheese". Molecules (Basel, Switzerland). 28 (5). doi: 10.3390/molecules28052085 . PMC   10004449 . PMID   36903331.
  11. Gordon, A. (2017). "Case study: formula safe foods—canned pasteurized processed cheese". Food Safety and Quality in Developing Countries: 149–184. doi:10.1016/B978-0-12-801226-0.00006-2. Canned processed cheese is traditionally used in Europe (particularly the Netherlands and Austria) for convenience, with the Austrian dairy firm Woerle and its Happy Cow brand of canned processed cheese (Fig. 6.1) being the European market leader. Canned processed cheese has also been used in other parts of the developed world for emergency preparedness as emergency supplies in the case of storms or other natural disasters, or as a stock item camping supply for outdoor activities, including in the US Army as a standard part of the field rations (Field Ration K, Processed American Cheese).
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  14. U.S. Patent 2759308 by Arnold Nawrocki was assigned to Clearfield Cheese Co. in 1956.
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  17. Barry A. Law; A. Y. Tamime, eds. (24 June 2011). Technology of Cheesemaking. John Wiley & Sons. p. 355. ISBN   978-1-4443-4789-0.
  18. 1 2 "21 CFR Part 133 - Cheeses and Related Cheese Products". Code of Federal Regulations.
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