Cottage cheese

Cottage cheese
Cottage cheese
Source of milk	Skimmed milk
Texture	Soft, creamy, and soupy
Fat content	0~5%
Related media on Commons

Cottage cheese is a type of fresh cheese with a mild flavor and a creamy, heterogeneous texture made from skimmed milk – hence the low milkfat content. It is made by adding an acid – like vinegar or lemon juice – to the milk which causes the milk proteins (curds) to separate from the liquid (whey). The curds are then drained and mixed with cream and salt, which is what gives cottage cheese its slightly tangy taste and creamy texture. The addition of a "dressing" to the curd grains is primarily responsible for the taste of the finished food. Cottage cheese is not aged.

It was first referred to as 'cottage cheese' in the United States to reflect that it was being made in farm cottages using milk left over from butter making.

Cottage cheese can be relatively low in milkfat/calories for the amount of protein it provides and is a rich source of vitamin B₁₂. Cottage cheese comes in different fat levels, including low–fat and fat–free – but even an original 'full fat' version is less calorific than a chunk of hard cheese or wedge of soft cheese.

History

Origin

Main article: History of cheese

The famous "Frieze of the Dairy" showing the façade of the Temple of the Great Goddess of Life, Ninhursag, at Tell al-'Ubaid, depicts priests engaged in the production of cow dairy in the stables of the complex, underscoring the sacred value attributed to this food, Sumerian Gallery of the Iraq Museum in Baghdad.

The first pictorial evidence for cheesemaking was found on a frieze at the Temple of the Great Goddess of Life, Ninhursag, in Mesopotamia in the Fertile Crescent – a region which covers modern day Iraq – and is 5,000 years old. The frieze depicts priests engaged in the production of cow dairy and perhaps creating curd mixture somewhat similar to cottage cheese.

A fictional story on the origin of cheese was taken from Homer's Odyssey, in which the poet describes how the Cyclops, Polyphemus, made cheese by storing milk in animal stomachs. The enzyme rennin from animals stomachs induces a coagulation process separating the curds from the whey.

As Rome expanded its empire, it spread the knowledge of cheese, discovering many new forms. The Romans introduced cheesemaking to England.

United States uses

Home-made cheese in cheesecloth traditional method

Immigrants to United States brought the tradition of fresh cheesemaking with them and by the mid-1800s the term cottage cheese entered the American vocabulary.

The first American cheese factory opened in 1868, beginning the wholesale cheese industry in the United States. The use of industrial cheese in the United States, in general, increased greatly at the end of the 19th century; by the turn of the 20th century, farm cheese production had become significant.

World War I poster encouraging U.S. citizens to consume cottage cheese as an alternative to meat products

Cottage cheese was widely promoted in America during the First World War, along with other dairy products, to save meat for infantry rations. This promotion was shown in many war posters, including one which claimed that one pound of cottage cheese contains more protein than a pound of lamb, pork, beef, or chicken.

After the war, cottage cheese quickly became more commonly consumed. Thirty million pounds (14,000 t) of cottage cheese were produced in 1919 (out of 418,000,000 pounds (190,000 t) of cheese in general in 1920), and by 1928, 87,000,000 pounds (39,000 t) were manufactured. Consumption peaked in the United States in the 1970s when dieting became common, and some $1.3 billion of it was sold per year, but in the 1980s, yogurt consumption increased, and cottage cheese sales dropped considerably further in the 2000s.

In 2016, a Wall Street Journal article speculated that cottage cheese might be ready for a resurgence following the increased use of Greek yogurt due to its high protein and low sugar levels.

Manufacture

Industrial production of cottage cheese relies on two primary methodologies: the traditional cultured method and the direct acid-set method. The global adoption of these processes varies by region due to local clean-label food regulations, factory scales, and consumer flavour preferences. Both processes begin with pasteurised skimmed milk, concentrated non-fat milk, or reconstituted non-fat dry milk to control baseline protein ratios.

Cultured method

The cultured method relies on natural bacterial fermentation to coagulate milk proteins and develop flavour. It is the dominant methodology used across the United Kingdom and continental Europe, where commercial dairy producers (such as Arla Foods) align with consumer preferences for clean-label, minimally processed foods that avoid direct chemical additives.

• Inoculation and Fermentation: Skimmed milk is pumped into enclosed vats and heated to approximately 30–32 °C (86–90 °F). A mesophilic starter culture of lactic acid-producing strains (such as Lactococcus lactis ssp. lactis or L. lactis ssp. cremoris) is introduced. These bacteria ferment the milk's lactose into lactic acid, dropping the pH over 4 to 8 hours.
• Coagulation: A precise dose of microbial or animal rennet is added to facilitate protein cross-linking. The rising acidity and the rennet cause the milk to curdle into a uniform, gelatinous mass.
• Cutting and Cooking: Internal wire grids slice the gel into uniform cubes, determining whether the batch is classified as "small-curd" (<4 mm) or "large-curd" (>8 mm). The vats are heated to 49–54 °C (120–130 °F) under gentle agitation, causing the curd to contract and expel liquid whey.
• Washing and Dressing: The whey is drained, and the curd mass is flooded with chilled, purified water. This stops further bacterial acidification and rinses away excess lactic acid, resulting in a mild flavour profile. The dry curds are then mechanically blended with a pasteurised cream dressing and salt.

Direct acid-set method

The direct acid-set method bypasses bacterial fermentation. Instead, food-grade acids (such as vinegar, citric acid, or lactic acid) are added directly to cold skimmed milk to induce instant coagulation.

This method is common in high-volume manufacturing within the United States. Eliminating the fermentation window reduces overall production timelines by approximately half and prevents "vat failures" caused by bacteriophages (viruses that disrupt starter cultures). Because the process does not produce natural fermentation aromatics, a starter distillate (diacetyl) is often added to impart a buttery flavour profile similar to cultured varieties. Under US regulations, cottage cheese manufactured via this process must be labelled as "direct acid set".

Additives and flavouring

To achieve a buttery profile in cultured lines, manufacturers can add small amounts of citrate-fermenting lactococci or Leuconostoc bacterial strains to the starter mix to produce diacetyl. Producers typically maintain a diacetyl-to-acetaldehyde ratio of 3–5 to 1; deviations from this ratio alter the sensory profile, with lower ratios yielding notes described as grassy and higher ratios yielding a sharper taste.

Titanium dioxide (E171) is added to some commercial brands to act as an opaque whitening agent. While permitted up to 1% of total volume by weight in the United States by the Food and Drug Administration (FDA), its global usage has declined due to shifting regional regulations on nanoparticle technology in food ingredients. Following a 2021 assessment by the European Food Safety Authority (EFSA) highlighting unresolved genotoxicity and nanoparticle accumulation concerns, the European Union implemented a full ban on E171 in food products starting in August 2022.

In contrast, the United Kingdom represents a distinct post-Brexit regulatory divergence. The UK Food Standards Agency (FSA), alongside the Committee on Toxicity (COT) and the Committee on Mutagenicity (COM), reviewed the EFSA evidence and concluded that the dietary risk of genotoxicity from food-grade E171 was low. Consequently, titanium dioxide remains a permitted food additive in Great Britain under retained domestic food law.

Despite this legal authorization, many cross-border dairy processors supplying both the UK and EU markets have phased out the additive to maintain single, unified manufacturing lines. To maintain the bright profile desired by consumers without using E171, European manufacturers increasingly utilize alternative whitening agents. The most common substitute is calcium carbonate (E170), which is added to food dressings to achieve opacity without the use of unregulated nanoparticles.

Nutrition

Cottage cheese, full fat

Nutritional value per 100 g (3.5 oz)
Energy	103 kcal (430 kJ)
Carbohydrates	4.6 g
Fat	4.2 g
Protein	11.6 g
Vitamins and minerals Vitamins Quantity %DV† Vitamin A equiv. 4% 36 μg Thiamine (B1) 4% 0.052 mg Niacin (B3) 1% 0.138 mg Vitamin B6 3% 0.047 mg Vitamin B12 28% 0.66 μg Minerals Quantity %DV† Calcium 7% 88 mg Iron 2% 0.4 mg Magnesium 2% 9.2 mg Manganese 3% 0.08 mg Phosphorus 12% 154 mg Potassium 4% 124 mg Sodium 15% 350 mg Zinc 4% 0.45 mg
Other constituents	Quantity
Water	78 g
Link to Full Report from USDA Database
†Percentages estimated using US recommendations for adults, except for potassium, which is estimated based on expert recommendation from the National Academies.

Full fat cottage cheese is 78% water, 12% protein, 5% carbohydrates, and 4% fat (table). In a reference amount of 100 g (3.5 oz), full fat cottage cheese supplies 103 calories of food energy, and is a rich source (20% or more of the Daily Value, DV) of vitamin B₁₂ (28% DV) and a moderate source of phosphorus and sodium (12-15% DV, table).

Cottage cheese is safe to eat during pregnancy, unlike some cheese products that are not recommended. Other than supplying nutrients, there is little evidence that consuming cottage cheese provides any direct health effects.

Consumption

Cottage cheese and kabanos breakfast

In the United States and Canada, cottage cheese is used in many culinary dishes. It can be combined with fruit and sugar, salt and pepper, fruit purée, tomatoes, or granola and cinnamon. It can be eaten on toast, in salads, as a chip dip, as a replacement for mayonnaise in tuna salad, and as an ingredient in recipes such as jello salad and various desserts. Cottage cheese is also consumed with fruit, such as pineapple, pears, peaches, or mandarin oranges.

The sour taste of the product is due to lactic acid, which is present at 124–452 mg/kg. Formic, acetic, propionic and butyric acids contribute to the aroma.

Due to its incorporation of whey, cottage cheese is high in lactose relative to most other cheeses. However, lactose is partially decomposed by lactic acid fermentation.

See also

• Cottage cheese boycott, a consumer boycott in 2011 in Israel against the rise of food prices
• List of cheeses
• Ricotta, an Italian whey cheese

Coagulate skimmed milk with lactic bacteria and rennet

• Fromage blanc, a soft French cheese
• Tvorog, white cheese from Eastern Europe
• Quark, a soft German cheese

Coagulate with citric acid or acetic acids

• Paneer, Indian cottage cheese in Indian English made from whole buffalo milk. It is eaten boiled, baked, or fried.

External links

• Media related to Cottage cheese at Wikimedia Commons