Gluten-free beer is beer made from ingredients that do not contain gluten, such as millet, rice, sorghum, buckwheat or corn (maize). People who have gluten intolerance (including celiac disease and dermatitis herpetiformis sufferers) have a reaction to certain proteins in the grains commonly used to make beer, barley and wheat. The hordein found in barley and the gliadin found in wheat are types of gluten that can trigger symptoms in sufferers of these diseases. Gluten-free beer is part of a gluten-free diet.
Beers brewed mainly from cereals such as millet, rice, sorghum, buckwheat and corn (maize), which do not contain gluten, do not trigger an autoimmune response in celiacs. Some brewers brew with barley or rye, and reduce the level of gluten to below 20 ppm. This may be achieved by using enzymes such as Clarex, which break down gluten proteins in beer brewed with barley, as well as helping to filter the brew. [1] In most countries this technically classifies them as gluten-free beers, but in the United States, they are classified as gluten-reduced beers. These brewers believe they are safe to drink. The brewers argue that the proteins from barley are converted into non-harmful amino acids. Statements from brewers show that their scientists feel confident that their product is non-harmful to those who are gluten intolerant. Some celiacs report problems drinking these beers. However, there is some concern and evidence that the claim is not true.(for example: Sheehan, Evans & Skerritt, 2001). [2]
Brewers who produce low gluten beers are required to test every batch for gluten, and record gluten levels in "parts per million" ('ppm'). Although the barley hordein in such tests may not be detected, smaller pieces of these proteins, known as peptides, may remain and be toxic for celiacs.[ citation needed ] Those involved in gluten-free brewing, and others representing celiacs or those with other conditions that require a gluten-free diet, tend to be concerned that beer brewed using wheat or barley are not appropriate for those with celiacs or dermatitis herpetiformis, [3] [4] although the carefully controlled gluten levels of particular malt brews of England and Finland may be low enough to be consumed in relative safety (Against the Grain, 5 ppm; Sinebrychoff Koff III, 20 ppm; Laitilan Kukko Pils, 4 ppm). [5]
In August 2013 the FDA approved labeling standards [6] that allow foods and beverages with 20 ppm or less of gluten to be labeled "gluten-free". Some beers that are not traditionally sold as gluten free have been shown [7] to meet this criterion, and those who are gluten intolerant may be able to drink them without ill effect. This depends on individual sensitivity, as each person displays a different level at which an autoimmune response will be activated. As such, there is ongoing debate about acceptable gluten "levels" to celiacs.
According to tests done by the Argentine Coeliac Association (ACELA) and the Swedish National Food Agency, several brands of beer including Carlsberg, Corona and Pilsner Urquell contain less than 20 ppm, allowing them to be described as gluten-free. [8] According to the FDA, beers made from gluten containing grains can not be considered "gluten free". The Corona website mentions "There are traces of gluten in all our beers. We recommend that you consult your physician regarding consumption." [9]
The recent development of gluten-free ales and lagers has been seen as a positive move forward for those who suffer a variety of related gluten intolerant conditions; and there are a number of brands working to produce gluten-free beer. [10] [11] Of gluten-free products, beer is seen as the most difficult to produce in a commercially acceptable version. As of early 2012, a fast-growing range of ales and lagers is becoming widely available. [12] [13] There are now over 30 breweries producing gluten free beer in the United States, and as of 2019, there are 12 breweries that are 100% dedicated gluten free. [14] [15] The first gluten free beer to be granted label approval by the US Government is New Grist, brewed by Lakefront Brewery in Milwaukee, WI. [16] [17]
Formulas for home brewing gluten-free beer can now be found. Many of these include a sweet sorghum syrup as the principal carbohydrate. This is commercially manufactured from sorghum grain to be a malt substitute and contains amino acids and unfermentable sugars needed for yeast nutrition and "mouth feel". [18] Other sugars can be added for character and "feel", such as honey and maltodextrin, and roasted or malted buckwheat.
Gluten Free home brewing is now easy with commercially available gluten free home brewing kits containing the sorghum syrup, hops, yeast and other items. The cost of the kits, while more expensive than standard home brew kits, still produce very drinkable GF beer for less than the cost of a standard commercial beer. [19] Many find the taste of GF beers to be missing something. Adding additional hops has been found to improve flavour greatly.
The first international gluten-free beer festival [20] was held in February 2006 in Chesterfield, United Kingdom, as a joint enterprise between the Campaign for Real Ale (CAMRA). [21]
Brewing is the production of beer by steeping a starch source in water and fermenting the resulting sweet liquid with yeast. It may be done in a brewery by a commercial brewer, at home by a homebrewer, or communally. Brewing has taken place since around the 6th millennium BC, and archaeological evidence suggests that emerging civilizations, including ancient Egypt, China, and Mesopotamia, brewed beer. Since the nineteenth century the brewing industry has been part of most western economies.
Gluten is a structural protein naturally found in certain cereal grains. The term gluten usually refers to a wheat grain's prolamins, specifically glutelin proteins, that naturally occur in many cereal grains, and which can trigger celiac disease in some people. The types of grains that contain gluten include all species of wheat, and barley, rye, and some cultivars of oat; moreover, cross hybrids of any of these cereal grains also contain gluten, e.g. triticale. Gluten makes up 75–85% of the total protein in bread wheat.
The oat, sometimes called the common oat, is a species of cereal grain grown for its seed, which is known by the same name. Oats are used for human consumption as oatmeal, including as steel cut oats or rolled oats. Oats are a nutrient-rich food associated with lower blood cholesterol and reduced risk of human heart disease when consumed regularly. One of the most common uses of oats is as livestock feed.
Buckwheat or common buckwheat is a flowering plant in the knotweed family Polygonaceae cultivated for its grain-like seeds and as a cover crop. Buckwheat originated around the 6th millennium BCE in the region of what is now Yunnan Province in southwestern China. The name "buckwheat" is used for several other species, such as Fagopyrum tataricum, a domesticated food plant raised in Asia.
A gluten-free diet (GFD) is a nutritional plan that strictly excludes gluten, which is a mixture of prolamin proteins found in wheat, as well as barley, rye, and oats. The inclusion of oats in a gluten-free diet remains controversial, and may depend on the oat cultivar and the frequent cross-contamination with other gluten-containing cereals.
In brewing, adjuncts are unmalted grains or grain products used in brewing beer which supplement the main mash ingredient. This is often done with the intention of cutting costs, but sometimes also to create an additional feature, such as better foam retention, flavours or nutritional value or additives. Both solid and liquid adjuncts are commonly used.
Gliadin is a class of proteins present in wheat and several other cereals within the grass genus Triticum. Gliadins, which are a component of gluten, are essential for giving bread the ability to rise properly during baking. Gliadins and glutenins are the two main components of the gluten fraction of the wheat seed. This gluten is found in products such as wheat flour. Gluten is split about evenly between the gliadins and glutenins, although there are variations found in different sources.
A whole grain is a grain of any cereal and pseudocereal that contains the endosperm, germ, and bran, in contrast to refined grains, which retain only the endosperm.
Hordein is a prolamin glycoprotein, present in barley and some other cereals, together with gliadin and other glycoproteins coming under the general name of gluten. Hordeins are found in the endosperm where one of their functions is to act as a storage unit.
Mash ingredients, mash bill, mashbill, or grain bill are the materials that brewers use to produce the wort that they then ferment into alcohol. Mashing is the act of creating and extracting fermentable and non-fermentable sugars and flavor components from grain by steeping it in hot water, and then letting it rest at specific temperature ranges to activate naturally occurring enzymes in the grain that convert starches to sugars. The sugars separate from the mash ingredients, and then yeast in the brewing process converts them to alcohol and other fermentation products.
Prolamins are a group of plant storage proteins having a high proline amino acid content. They are found in plants, mainly in the seeds of cereal grains such as wheat (gliadin), barley (hordein), rye (secalin), corn (zein), sorghum (kafirin), and oats (avenin). They are characterised by a high glutamine and proline content, and have poor solubility in water. They solubilise best in strong alcohol [70-80%], light acid, and alkaline solutions. The prolamins of the tribe Triticeae, such as wheat gliadin, and related proteins are known to trigger coeliac disease, an autoimmune condition, in genetically predisposed individuals.
Lakefront Brewery, Inc. is a brewery in Milwaukee, Wisconsin, United States. The brewery is based in the Beerline B neighborhood of Milwaukee, Wisconsin. Founded in 1987 by brothers Russ and Jim Klisch, several of its brands are named after Milwaukee neighborhoods, such as Riverwest Stein Beer and East Side Dark. The brewery was the first in the U.S. to bottle fruit beer since prohibition was repealed, starting in 1992 with the seasonal Lakefront Cherry Lager. The brewery often uses Wisconsin-grown ingredients, including Door County cherries.
Gluten is the seed storage protein in mature wheat seeds. It is the sticky substance in bread wheat which allows dough to rise and retain its shape during baking. The same, or very similar, proteins are also found in related grasses within the tribe Triticeae. Seed glutens of some non-Triticeae plants have similar properties, but none can perform on a par with those of the Triticeae taxa, particularly the Triticum species. What distinguishes bread wheat from these other grass seeds is the quantity of these proteins and the level of subcomponents, with bread wheat having the highest protein content and a complex mixture of proteins derived from three grass species.
Commercial sorghum is the cultivation and commercial exploitation of species of grasses within the genus Sorghum. These plants are used for grain, fibre and fodder. The plants are cultivated in warmer climates worldwide. Commercial Sorghum species are native to tropical and subtropical regions of Africa and Asia.
Gluten-related disorders is the term for the diseases triggered by gluten, including celiac disease (CD), non-celiac gluten sensitivity (NCGS), gluten ataxia, dermatitis herpetiformis (DH) and wheat allergy. The umbrella category has also been referred to as gluten intolerance, though a multi-disciplinary physician-led study, based in part on the 2011 International Coeliac Disease Symposium, concluded that the use of this term should be avoided due to a lack of specificity.
Anti-gliadin antibodies are produced in response to gliadin, a prolamin found in wheat. In bread wheat it is encoded by three different alleles, AA, BB, and DD. These alleles can produce slightly different gliadins, which can cause the body to produce different antibodies. Some of these antibodies can detect proteins in specific grass taxa such as Triticeae, while others react sporadically with certain species in those taxa, or over many taxonomically defined grass tribes.
Anti-transglutaminase antibodies (ATA) are autoantibodies against the transglutaminase protein. Detection is considered abnormal, and may indicate one of several conditions.
Oat sensitivity represents a sensitivity to the proteins found in oats, Avena sativa. Sensitivity to oats can manifest as a result of allergy to oat seed storage proteins either inhaled or ingested. A more complex condition affects individuals who have gluten-sensitive enteropathy in which there is an autoimmune response to avenin, the glutinous protein in oats similar to the gluten within wheat. Sensitivity to oat foods can also result from their frequent contamination by wheat, barley, or rye particles.
Dermatitis herpetiformis (DH) is a chronic autoimmune blistering skin condition, characterised by intensely itchy blisters filled with a watery fluid. DH is a cutaneous manifestation of coeliac disease, although the exact causal mechanism is not known. DH is neither related to nor caused by herpes virus; the name means that it is a skin inflammation having an appearance similar to herpes.
Non-celiac gluten sensitivity (NCGS) or gluten sensitivity is a controversial disorder which can cause both gastrointestinal and other problems.