Beer Ingredients 435

Beer Ingredients



The main ingredients found in beer are water, malted

barley, hops, and yeast. There are other ingredients

such as flavoring, sugar, and other ingredients that

are commonly used. Starches are used as well, as

they convert in the mashing process to easily

fermentable sugars that will help to increase the

alcohol content of beer while adding body and flavor.



Water

Seeing as how beer is mainly composed of water, the

source of water and its characteristics have a very

important effect on the character of the beer. A

lot of beer styles were influenced by the

characteristics of water in the region. Although

the effect of minerals in brewing water is complex,

hard water is more suited to dark styles, while

soft ware is more suited to light styles.



Malt

Among malts, barley is the most widely used due to

its high amylase content, and a digestive enzyme
that facilitates the breakdown of starch into

sugars. Depending on what can be cultivated locally,

other malts and unmalted grains can be used, such

as wheat, rice, oats, and rye.



Malt is obtained by soaking grain in water, allowing

it to germinate, then drying the germinated grain

in a kiln. By malting the grain, enzymes will

eventually convert the starches in the grain into

fermentable sugars.



Hops

Since the seventeenth century, hops have been

commonly used as a bittering agent in beer. Hops

help to contribute a bitterness that will balance

the sweetness of the malts. They also contribute

aromas which range from citrus to herbal.



Hops also provide an antibiotic effect that favors

the activity of brewer's yeast over the less

desirable microorganisms. The bitterness in beer

is normally measured on the International

Bitterness Units scale.



Yeast

Yeast is a microorganism that's responsible for

fermentation. Specific strains of yeast are chosen

depending on the type of beer produced, as the

two main strains are ale yeast and lager yeast,

with other variations available as well.



Yeast helps to metabolise the sugars that are

extracted from the grains, and produces alcohol

and carbon dioxide as a result. Before the functions

of yeast were understood, all fermentations were

done using wild or airborne yeasts.



Clarifying agent

A lot of brewers prefer to add one or more

clarifying agents to beer that aren't required

to be published as ingredients. Examples include

Isinglas fi
aromas which range from citrus to herbal.



Hops also provide an antibiotic effect that favors

the activity of brewer's yeast over the less

desirable microorganisms. The bitterness in beer

is normally measured on the International

Bitterness Units scale.



Yeast

Yeast is a microorganism that's responsible for

fermentation. Specific strains of yeast are chosen

depending on the type of beer produced, as the

two main strains are ale yeast and lager yeast,

with other variations available as well.



Yeast helps to metabolise the sugars that are

extracted from the grains, and produces alcohol

and carbon dioxide as a result. Before the functions

of yeast were understood, all fermentations were

done using wild or airborne yeasts.



Clarifying agent

A lot of brewers prefer to add one or more

clarifying agents to beer that aren't required

to be published as ingredients. Examples include

Isinglas finings, which are obtained from swim

bladders of fish and Irish moss, which is a type

of red alga.



Since these ingredients can be obtained from animals,

those who are concerned with either the use or

consumption of animal products should obtain detailed

information from the brewer.



(word count 435)



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