Strained yogurt

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Strained yogurt

Strained yogurt with olive oil
Alternative names	Greek yogurt, chak(k)a, labneh, suzma, yogurt cheese
Type	Fermented dairy product
Region or state	Levant, West, South, and Central Asia; Middle East, Caucasus, Southeastern Europe, Eastern Europe
Serving temperature	cold
Main ingredients	Yogurt
Food energy (per 100 g serving)	133 kcal (557 kJ)[1]
Media: Strained yogurt

Strained yogurt, Greek or Greek-style yogurt,^[2] yogurt cheese, sack yogurt, kerned yogurt or labneh is yogurt that has been strained to remove most of its whey, resulting in a thicker consistency than normal unstrained yogurt, while still preserving the distinctive sour taste of yogurt. Like many types, strained yogurt is often made from milk enriched by boiling off some water content, or by adding extra butterfat and powdered milk. In Europe and North America, it is often made from low-fat or fat-free cow's milk. In Iceland a similar product named skyr is made.^[3][4]

Strained yogurt is usually marketed in North America as "Greek yogurt" and in the United Kingdom as "Greek-style yoghurt",^[5] though strained yogurt is also widely eaten in Levantine, Eastern Mediterranean, Middle Eastern, Central Asian, South Asian, and Eastern European cuisines, where it is often used in cooking, as it curdles less readily when cooked. It is used in a variety of dishes, cooked or not, savory or sweet. Straining makes even non-fat yogurt varieties thicker, richer, and creamier than unstrained. Since straining removes the whey, more milk is required to make strained yogurt, increasing the production cost. In Western Europe and the United States, strained yogurt has increased in popularity compared to unstrained yogurt. Since the straining process removes some of the lactose, strained yogurt is lower in sugar than unstrained yogurt.^[6]

It was reported in 2012 that most of the growth in the US$4.1 billion American yogurt industry came from the strained yogurt sub-segment, typically marketed as "Greek yogurt".^[7][8] In the US, there is no legal or standard definition of Greek yogurt, and yogurt thickened with thickening agents, typically pectin, locust bean gum, starches or guar gum, may also be sold as "Greek yogurt".^[9]

In English, strained yogurt only became well known outside of immigrant communities in the 1980s,^[10] when it was imported into the United Kingdom by the Greek company Fage, under the brand name "Total". Starting in the 1980s, essentially all yogurt in the UK called "Greek yogurt" was strained yogurt made in Greece.^[11]

In the cuisines of many Iranian and Turkic people (e.g. in Afghan, Tatar, Tajik, Uzbek, and other Central Asian cuisines), a type of strained yogurt called chak(k)a^[4] or suzma is consumed. It is obtained by draining qatiq, a local yogurt variety. By further drying it, one obtains qurut, a kind of dry fresh cheese.^{[citation needed]}

Strained yogurt is made by straining the liquid out of yogurt until it takes on a consistency similar to a soft cheese. Strained yogurt is known as labneh (labna, labni, labne, lebni, or labani; Arabic: لبنة) in the countries of the Levant, Armenia, Egypt, and the Arabian Peninsula. Labaneh bil zayit, "labaneh in oil", consists of small balls of dry labneh, sometimes covered with herbs or spices, kept in olive oil, where it can be preserved for over a year. As it ages it turns more sour.^{[citation needed]}

The flavor depends largely on the sort of milk used: labneh from cow's milk has a rather mild flavor. Also the quality of olive oil topping influences the taste of labneh. Milk from camels and other animals is used in labneh production in Saudi Arabia and other Gulf Arab countries.^{[citation needed]}

Labneh is a popular mezze dish and sandwich ingredient, especially in the Levantine countries of Lebanon, Syria, Jordan, and Palestine. A common sandwich in the Middle East is one of labneh, mint, zaatar, and olive on flatbread. It is a common breakfast dip.^[12] It is usually eaten spread on a plate and drizzled with olive oil, and often dried mint. It is also often paired as a dip with the mixed herb blend za'atar.^{[citation needed]}

Bedouin also produce a dry, hard labneh (labaneh malboudeh, similar to Central Asian qurut) that can be stored: strained labneh is pressed in cheese cloth between two heavy stones and later sun-dried. Dry labneh may be mixed with khubz (Arabic bread), water, animal fat, and salt, and rolled into balls.^{[citation needed]}

Labneh is the main ingredient in jameed, which is used in mansaf, the national dish of Jordan.^{[citation needed]}

In Egypt, it is eaten with savory accompaniments such as olives and oil, and also with a sweetener such as honey, as a snack or breakfast food. Areesh cheese (or arish, Arabic: جبنة قريش) is a type of cheese that originated in Egypt. Arish cheese is made from yogurt heated slowly until it curdles and separates, then placed in cheesecloth to drain. It is similar in taste to ricotta.^[13] The protein content of Areesh cheese is 17.6%.^[14] Shanklish, a fermented cheese, is made from areesh cheese.^[15]

As in Greece, strained yogurt is widely used in Cypriot cuisine both as an ingredient in recipes as well as on its own or as a supplement to a dish. In Cyprus, strained yogurt is usually made from sheep's milk.^{[citation needed]}

Strained yogurt in Iran is called mâst chekide and is usually used for making dips, or served as a side dish. In Northern Iran, mâst chekide is a variety of kefir with a distinct sour taste. It is usually mixed with fresh herbs in a pesto-like purée called delal. Yogurt is a side dish to many Iranian meals. Strained yogurt is used as dips and various appetizers with multitudes of ingredients: cucumbers, onions, shallots, fresh herbs (dill, spearmint, parsley, cilantro), spinach, walnuts, zereshk, garlic, etc. The most popular appetizers are spinach or eggplant borani, ‘'Mâst-o-Khiâr'’ with cucumber, spring onions and herbs, or ‘'Mâst-Musir'’ with wild shallots. Strained yogurt in Balochistan is called sheelanch and is used for making dips served with dates, or served as a side dish.^{[citation needed]}

In Turkey, strained yogurt is known as süzme yoğurt^[16] ("strained yogurt") or kese yoğurdu ("bag yogurt").^[17] Water is sometimes added to it in the preparation of cacık, when this is not eaten as a meze but consumed as a beverage. Strained yogurt is used in Turkish mezzes and dips such as haydari.^{[citation needed]}

In Turkish markets, labne is also a popular dairy product but it is different from strained yogurt; it is yogurt-based creamy cheese without salt, and is used like mascarpone.^[18]

In Armenia, strained yogurt is called kamats matzoon. Traditionally, it was produced for long-term preservation by draining matzoon in cloth sacks.^{[citation needed]}

In South Asia, regular unstrained yogurt (curd), made from cow or water buffalo milk, is often sold in disposable clay bowls called kulhar. Kept for a couple of hours in its clay pot, some of the water evaporates through the unglazed clay's pores. It also cools the curd due to evaporation.^{[citation needed]}

But true strained yogurt, chakka, is made by draining the yogurt in a (preferably muslin) cloth.^[19] It is hung for 12 to 18 hours to allow some of the whey to drain off. This technique is popular in India and Pakistan.^[20] Shrikhand is a dish made with chakka, sugar, saffron, cardamom, pureed or diced fruit and nuts mixed in; it is often eaten with poori. It is particularly popular in the states of Gujarat and Maharashtra, where dairy producers market shrikhand in containers.^{[citation needed]}

Chakka is also eaten in Pashtun-dominated regions of Pakistan with rice and meat dishes.^[21]

Strained yogurt (Greek: στραγγιστό γιαούρτι, romanized: strangistó giaoúrti) is used in Greek food mostly as the base for tzatziki dip and as a dessert, with honey, sour cherry syrup, or spoon sweets often served on top. A few savory Greek dishes also use strained yogurt. In Greece, strained yogurt, like yogurt in general, is traditionally made from sheep milk. Fage International S.A. began straining cow milk yogurt for industrial production in Greece in 1975, which is when it launched its brand "Total".^[22]

In Albania, strained yogurt is called "salcë kosi" (yogurt sauce). Yogurt is drained in a cloth sack from few hours to overnight. The water released from this process is called "hirrë" and can be used to preserve cheese or as a drink.

In Bulgaria, where yogurt is considered to be an integral part of the national cuisine, strained yogurt is called "tsedeno kiselo mlyako" (Bulgarian: цедено кисело мляко), and is used in a variety of salads and dressings.

A variety of strained yogurt called "basa" is a traditional variety of cheese from the region of Lika in Croatia. In Serbia and North Macedonia, it is also known as kiselo mleko (кисело млеко).

A type of strained yogurt named ymer is available in Denmark. In contrast to the Greek and Turkish variety, only a minor amount of whey is drained off in the production process.^[23] Ymer is traditionally consumed with the addition of ymerdrys (lit.: ymer-sprinkle), a mixture of roasted bread crumbs of rugbrød rye bread mixed with brown sugar. Like other types of soured dairy products, ymer is often consumed at breakfast. Strained yogurt topped with muesli and maple syrup is often served at brunch in cafés in Denmark.^{[citation needed]}

Strained yogurt is known as hangop, literally meaning 'hang up' in the Netherlands. It is a traditional dessert. Hangop may also be made using buttermilk.^{[citation needed]}

In March 2020, it was reported that strained yogurt makes up 28% of the value of the "natural yogurt" category in the United Kingdom.^{[citation needed]} In the UK, strained yogurt can only be marketed as "Greek" if made in Greece. Strained cow-milk yogurt not made in Greece is typically sold as "Greek style" or "Greek recipe" for marketing reasons, typically at lower prices than yogurt made in Greece. Among "Greek style" yogurts, there is no distinction between those thickened by straining and those thickened through additives.^[24] However, if the yogurt contains anything other than lactic products, food enzymes and micro-organism cultures a list of ingredients is required on packaging.^[25] Strained yogurt with added fruit, honey, etc., and yogurt with reduced or no fat content, may be described as Greek-style.

In September 2012, Chobani UK began to sell yogurt made in the United States as "Greek yogurt". FAGE, a company that manufactures yogurt in Greece and sells it in the United Kingdom, filed a passing-off claim against Chobani in the UK High Court, claiming that UK consumers understood "Greek" to refer to the country of origin (similar to "Belgian beer"); Chobani's position was that consumers understood "Greek" to refer to a preparation (similar to "French toast"). Both companies relied on surveys to prove their point; FAGE also relied on the previous industry practice of UK yogurt makers not to label their yogurt as "Greek yogurt". Ultimately Mr Justice Briggs found in favor of FAGE and granted an injunction preventing Chobani from using the name "Greek yogurt".^[24] In February 2014, this decision was upheld on appeal.^[26][27] Greece may now seek to protect the marketing term, "Greek yogurt", across the entire EU under protected designation of origin rules.^[28]

In May 2020, British dairy company Yeo Valley entered the market with an organic product called "Super Thick Kerned Yogurt.^[29] The "kerned yogurt" label was the first of its kind, coined in reference to an archaic Somerset term meaning "thickened", which is predominantly used in relation to dairy products.^[30]

A product called "Lindahls Kvarg" was launched in the UK by Nestlé^[31] in 2018, and described as "Sweden's No. 1 Quark". Quark is a type of high-protein strained curd cheese widely used in Swedish cooking. The company Bio-tiful launched its kefir-quark blend, containing live cultures and protein.^[32]

Since 2015, Arla has sold its own skyr product marketed as "Icelandic style yogurt".^[33]

In Mexico, the thick yogurt jocoque seco was popularized by local producers of Lebanese origin and is widely available.^{[citation needed]}

Strained yogurt typically marketed as "Greek yogurt" has become popular in the United States and Canada,^[6] where it is often used as a lower-calorie substitute for sour cream or crème fraîche.^[34] Celebrity chef Graham Kerr became an early adopter of strained yogurt as an ingredient, frequently featuring it (and demonstrating how to strain plain yogurt through a coffee filter) on his eponymous 1990 cooking show, as frequently as he had featured clarified butter on The Galloping Gourmet in the late 1960s. In 2015, food market research firm Packaged Facts reported that Greek yogurt has a 50 percent share of the yogurt market in the United States.^[35]

There are numerous "Greek yogurt" brands in North America.^[6] FAGE began importing its Greek products in 1998 and opened a domestic production plant in Johnstown, New York, in 2008.^[8] Chobani, based in New Berlin, New York, began marketing its Greek-style yogurt in 2007. The Voskos brand entered the US market in 2009 with imported Greek yogurt products at 10%, 2%, and 0% milkfat.^[36] Stonyfield Farms, owned by Groupe Danone, introduced Oikos Organic Greek Yogurt in 2007; Danone began marketing a non-organic Dannon Oikos Greek Yogurt in 2011 and also produced a now discontinued blended Greek-style yogurt under the Activia Selects brand;^[37] Dannon Light & Fit Greek nonfat yogurt was introduced in 2012,^[38] and Activia Greek yogurt was re-introduced in 2013.^[39] General Mills introduced a Greek-style yogurt under the Yoplait brand name in early 2010, which was discontinued and replaced by Yoplait Greek 100 in August 2012.^[40] Activia Greek yogurt was re-introduced in 2013, and in July 2012 took over US distribution and sales of Canadian Liberté's Greek brands. In Canada, Yoplait was launched in January 2013, and is packaged with toppings.^[41]

While yogurt may legally be described as "strained", modern commercial production does not usually reduce the liquid content by passing the yogurt through a filter under gravity, the usual definition of straining. The characteristic thick texture and high protein content are achieved through either or both of two processing steps. The milk may be concentrated by ultrafiltration to remove a portion of the water before addition of yogurt cultures.^[42] Alternatively, after culturing, the yogurt may be centrifuged or membrane-filtered to remove whey, in a process analogous to the traditional straining step. Brands described as "strained" yogurt, including Activia Greek, Chobani, Dannon Light & Fit Greek, Dannon Oikos, FAGE, Stonyfield Organic Oikos, Trader Joe's, and Yoplait have undergone the second process. Process details are highly guarded trade secrets. Other brands of Greek-style yogurt, including Yoplait and some store brands, are made by adding milk protein concentrate and thickeners^[43] to standard yogurt to boost the protein content and modify the texture.^[42]

The liquid resulting from straining yogurt is called "acid whey" and is composed of water, yogurt cultures, protein, a slight amount of lactose, and lactic acid. It is costly to dispose of.^[44][45][46] Farmers have used the whey to mix with animal feed and fertilizer. Using anaerobic digesters, it can be a source of methane that can be used to produce electricity.^[47]

Strained yogurt is a good source of protein, calcium, iodine, and vitamin B12.^[48][49] The straining process, which removes liquid whey and lactose, yields higher protein content.^[50] The FAO standard requires yogurt to have at least 5.6% protein content if strained, otherwise 2.7%.^[51] Strained yogurt has less sugar content than other yogurts.^[48]

Yogurt is a rich source of dietary minerals, with calcium, magnesium, potassium, phosphorus, and zinc higher in content than in milk.^[48][49] One negative aspect of strained yogurt is that there is greater vitamin loss through the straining process than typical yogurt;^[48] in particular, the water-soluble vitamins: vitamin C, thiamin, riboflavin, niacin, pantothenic acid, biotin, folic acid, and vitamin B12 as well as vitamin A in its beta-carotene form can be lost through the straining of liquid whey from yogurt.^[48]

There are no standard regulations in the market to monitor or control the composition of concentrated yogurts.^[52] Carbohydrate, fat and protein contents in strained yogurts varied from 1–12, 0–20, and 3.3–11 grams per 100 grams.^[52] Concentrated yogurts contain higher final total solid content than regular yogurts, possibly prolonging shelf life compared to regular yogurts.^[53]

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