KINDS OF BEERS
I'm going to talk about different kinds of beers, for this reason, I have divided my talk into three
parts:
First, I will talk about the ingredients needed to make beer.
Secondly, I will describe the usual process of making beer.
And finally, we'll see some ways to classify beer.
So, now let´s move to the first point
of my talk which is about the ingredients nedded in brewing, which are
basically: malt, water, hop and yeast.
To talk about malt let me explain that to
get the sugars from cereals needed in fermentation to produce alcohol and
carbonic gas, it is necessary to carry out the process called malting.In this
process, enzymes are also released. Malt is the byproduct in the malting
process.
Normally the cereal used for making
beer is barley, but there are beers made with wheat, rye or a mix of cereals.
I´ll talk about it in the third point.
Another ingredient is water.It´s the
main ingredient in making beer.
Most of the times, beer is made up of
water, up to 90%.
The next ingredient I´m going to talk
about is hop. Hop is a wild climbing plant
whose female flowers are used for making beer.
Hop develops the characteristical
bitterness of beer. Besides, hop has preservative properties.
Now, let´s talk about yeasts. Yeasts
are microorganisms that produce alcohol and carbonic gas from sugars by
fermentation.
There are many varieties of yeasts
which produce different types of fermentation and, consequently, this will
result in beers with different characteristics.
I have to say that additives, like
fruits or spices that give it special flavors, have been added to some beers.
That´s all what I wanted to say about
ingredients.
Let´s now take a look at the next point
which is the process whereby beer is made.
It may have modifications in the
process depending on the brewer to get different characteristics but what I’ll explain to you next are the main steps that anyone has to do for making any beer.
There are 6 different stages in the process, which are: malting, mashing,
boiling, lautering and cooling, fermentation, maturation and ending.
Before malting, the barley is soaked
and then the grain germinates in special boxes.
After that, it is dried and toasted in
the process of malting resulting malt as a byproduct.
While toasting, the higher
temperatures, the darker malt we´ll will be obtained.
Once we get the malt, the mashing stage comes: it is mixed with hot water and kept there for
hours. The product obtained after that is the wort which will be filtered.
Next, the wort is boiled and at this
moment the hop is added. The variety of hop, the amount added, and the point or points in the boil at which they are added, all contribute to the flavour of the beer. They add bitterness when added early to th boil, flavour if added in the middle, and aroma when added at the end.
After that, it is necessary to clarify,
where the particles coagulated in the previous step are separated by
centrifugation. Then the hot wort is cooled to prepare it for fermenting.
The next step is to add the yeasts to
the wort. There are different types of yeasts which will not produce the same
fermentation. In this point, the difference between the two big groups of beers
is obtained: lager and ale. The first group needs a low fermentation,the latter
needs a high fermentation.
Once the fermentation takes place, the beer is kept in tanks to carry out the
maturation. A good beer should have a period of maturation of two to three
weeks reaching up two or three months.
The process ends with bottling and
pasteurising.
We have seen the main ingredients and
the process, now let´s move to the last point which is different classifications
of beers.
There are more than one way to classify
beers. Beers can be classified depending on their
fermentation, their ingredients, appearance, their procedures in the
elaboration, or their origin.
The first classification consists of separating beers with different fermentation. So,
depending on the yeast used, there are two main groups: beers with a low
fermentation which are called lager, and beers with a high fermentation called
ale.
There is another type of beer called
lambic, this beer has a spontaneous fermentation with yeasts from the air. This
type is elaborated in Belgium .
Another clasification is based according
to its ingredients, it can be a beer of barley malt; wheat can also be added, either
in grain or malted, and besides wheat, other cereals can be added like rye or
oats.
Beers are also classified according to
the variety of hop used like the beer called pils or pilsen made with a hop
called saaz.
Also beers are known for their colour. The colour depends on the intensity of
toasting.
There are dark beers, red beers, blond
beers or amber beers. The translucency of a beer depends on the type of filter.
There is a dark beer specially sturdy known as stout that is very popular in Ireland .
The next classification depends on the
procedures in the elaboration. Some beers are known for a particular step in
their elaboration. For example, Rauchbier
which means smoked beer in German, is toasted with wood and the brewer lets the
smoke permeates the malt. Some traditional German beers were drunk hot and a
hot iron stick was insert in beer to heat it and caramelize some sugars. Those beers
are known as Stachelbier.
The last classification I will mention depends on its origin. There is a kind of beer known as abbey
beer. These beers have this name because of their relation with a monastery.
This relation is not always so direct but all those beers
have a high alcoholic graduation and they are very dense beers.
That completes the different classes of
beer.
So, to sum up, first I have talked about the ingredients
needed to make beer, after that, I have described the main steps in the process
of making beer, and thirdly we have seen some ways to categorize beer.
In conclusion, there are many ways to classify beers depending
on their process and ingredients and each one with its character.
Kinds of bee rppt
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