All those who love their coffee must have
noticed how some coffee tastes different than others. Some tastes like dark
chocolate or roasted almonds, while others taste plain dark and deep. Some have
a fruity and bright flavour in comparison to some that taste like green tea.
When it comes to talking and drinking coffee, there are a lot of flavours to
speak about.
However, my reason for raising the flavour
issues was not to discuss how different coffee flavours are, but why does
coffee have different tastes.
The reason for the difference in coffee tastes
is not generally because of the climate or conditions under which coffee is
grown or for that matter the origin of the coffee beans (Which sometimes do
play a part in flavour though) but because of the way coffee beans are roasted.
That pronounced flavour is primarily determined by how intensively the coffee
beans were roasted. The light or dark roasting of the beans determine how the
coffee that you intake shall taste.
Dark
and Light roasted coffee beans:
Like any other cooking procedure, coffee beans
are roasted to remove the water and moisture out of the bean by force through
the process of evaporation.
Lightly roasted coffee beans are denser as they
are not roasted to the extent that like dark
roasted coffee beans. In light roasting, the beans are left with
some moisture in them. Since these coffee beans are denser, they will have more
caffeine, more acids and more herbal flavours. (One point to note here that
acid is not the typical chemical acid but the brightness of the light roasted
coffee which is also referred to as “acid”)
In contrast, all moisture and water are sucked
out from the coffee bean in the dark roasted procedure. The beans stay longer
on the roasting machine and at a higher temperature and hence it makes them
less caffeinated, less dense and straighter note in flavours.
What affects the caffeine content in a drink?
Whenever we drink coffee, caffeine is always
on our mind. We tend to think that the degree
of caffeine in your coffee decides the taste of the
drink. It is indeed correct however the degree of caffeine is often decided by
-
How
has your coffee been roasted - Whether it is light
roasted, medium roasted or dark roasted.
The
type of coffee that has been used - There are two species
of coffee plants that give us coffee seeds: Arabica and Robusta. Arabica is the
most common type of coffee, with more than 75 percent of coffee produced across
the world. Robusta, on the other hand, is less known and used primarily in
instant coffee.
The
method of brewing - The caffeine extraction also depends on the
brewing of your coffee. While espresso and cold brew will have less caffeine, French
press, instant, drip and brewed coffee extract more caffeine.
Since roasting coffee beans is a prime decider
on the caffeine extraction in a coffee drink, and we are also aware that
roasting could be light, medium or dark, with light roast and dark roast more
popular, let us now learn if dark roasted coffee beans have more caffeine or
not.
Does
Dark Roast Coffee have more Caffeine?
The answer is No.
The caffeine content in dark roast coffee is
not more than Light roasted coffee beans. Research shows that if you were to
test both the varieties of coffee beans by their volume, then light roasted
coffee would show more caffeine content. However, on testing both the coffee
bean by weight, the caffeine content in Light roast and dark roast coffee beans
were similar.
The primary reason for dark roasted coffee
beans having less caffeine than light roasted beans is that the dark roasting
of the coffee beans happens till such time all the water and moisture content
of the beans are removed. Thus, making the beans fluffier and with less
caffeine content.
Caffeine is more or less stable across all
roasts. However, dark roast coffee beans are less dense than light roast coffee
beans, and that is what makes the difference in your coffee.
The
last word
The amount of caffeine in your coffee is
decided by the amount of coffee used while you are brewing it. Some might think
that dark roast is stronger and hence would have more caffeine. But the truth
is, if you think you need more caffeine in your drink then simply brew more
coffee irrespective of the light or dark roasted coffee beans.
Thank you for this very enlightening article! Now I know why my husband can sleep after espresso!🐱
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