VELAMMAL VIDHYASHRAM
SURAPET
chemistry INVESTIGATORY PROJECT
ON
Compare the caffeine content in
different coffee sample
NAME : r.vigneshkumar
CLASS : 12a1
ROLL NUMBER :
SSCE -2025 -2026
CERTIFICATE
This is to certify that,R.VIGNESHKUMARof class XII A1 has
successfully completed the project on the topic “COMPARE THE
CAFFEINE CONTENT IN DIFFERENT COFFEE SAMPLE”
under the guidance of Mr.VIJAYARAJ.J in partial fulfillment of
chemistry practical examination conducted by SSCE, CBSE, New Delhi
for the academic year 2025 – 2026.
Signature of teacher in charge Signature of Internal Examiner
Signature of Principal Signature of External Examiner
ACKNOWLEDGEMENT
In the accomplishment of this project successfully, many people have
bestowed upon me their blessings and the heart pledged support. So I am
utilizing this opportunity to thank all the people who have been
concerned with my project.
Primarily I would like to thank God Almighty for giving me the
strength, knowledge and good health to complete this project
successfully.
Then I would like to thank the Principal of Velammal Vidhyashram for
the continuous support and our Physics teacher whose whole hearted
guidance helped me to complete the project. The suggestions and
instructions given by them served as the major contribution in the
completion of this project.
Then I would like to thank my parents and friends who have given me
their valuable suggestions and guidance, that have been instrumental in
the completion of this project.
Signature of the Student
TABLE OF CONTENT
S NO. TOPICS PAGE NO.
1 Introduction
2 Aim
3 Materials required
4 Theory
5 Procedure
6 Observation
7 Conclusion
8 Bibliography
INTRODUCTION:
Coffee is a beverage prepared from roasted coffee beans. Darkly colored, bitter,
and slightly acidic, coffee has a stimulating effect on humans, primarily due to its
caffeine content. The Seeds of the Coffee plant's fruits are separated to produce
unroasted green coffee beans. The beans are roasted and then ground into fine
particles that are typically steeped in hot water before being filtered out, producing
a cup of coffee. It is usually served hot, although chilled or iced coffee is common.
Coffee is a
beverage
prepared
from
roasted
coffee
beans.
Darkly
colored,
bitter, and
slightly
acidic,
coffee has
a
stimulating
effect on
humans,
primarily
due to its
caffeine
content.
The Seeds
of the
Coffee
plant's
fruits are
separated
to produce
unroasted
green
coffee
beans. The
beans are
roasted and
then
ground into
fine
particles
that are
typically
steeped in
hot water
before
being
filtered out,
producing a
cup of
coffee. It is
usually
served hot,
although
chilled or
iced coffee
is commo Coffee is a
beverage prepared from roasted coffee beans. Darkly colored, bitter, and slightly acidic, coffee
has a stimulating effect on humans, primarily due to its caffeine content.
The Seeds
of the
Coffee
plant's
fruits are
separated
to produce
unroasted
green
coffee
beans. The
beans are
roasted and
then
ground into
fine
particles
that are
typically
steeped in
hot water
before
being
filtered out,
producing a
cup of
coffee. It is
usually
served hot,
although
chilled or
iced coffee
is common The
Seeds of the Coffee plant's fruits are separated to produce unroasted green coffee beans. The beans are
roasted and then ground into fine particles that are typically steeped in hot water before being filtered
out, producing a cup of coffee. It is usually served hot, although chilled or iced coffee is common.
INTR
ODU
CTIO
N
Coffee is a
beverage
prepared
from
roasted
coffee
beans.
Darkly
colored,
bitter, and
slightly
acidic,
coffee has
a
stimulating
effect on
humans,
primarily
due to its
caffeine
content.
The Seeds
of the
Coffee
plant's
fruits are
separated
to produce
unroasted
green
coffee
beans. The
beans are
roasted and
then
ground into
fine
particles
that are
typically
steeped in
hot water
before
being
filtered out,
producing a
cup of
coffee. It is
usually
served hot,
although
chilled or
iced coffee
is common.
EVOLUTION OF COFFEE:
INTR
ODU
CTIO
N
Coffee is a
beverage
prepared
from
roasted
coffee
beans.
Darkly
colored,
bitter, and
slightly
acidic,
coffee has
a
stimulating
effect on
humans,
primarily
due to its
caffeine
content.
The Seeds
of the
Coffee
plant's
fruits are
separated
to produce
unroasted
green
coffee
beans. The
beans are
roasted and
then
ground into
fine
particles
that are
typically
steeped in
hot water
before
being
filtered out,
producing a
cup of
coffee. It is
usually
served hot,
although
chilled or
iced coffee
is common.
Coffee is a
beverage
prepared
from
roasted
coffee
beans.
Darkly
colored,
bitter, and
slightly
acidic,
coffee has
a
stimulating
effect on
humans,
primarily
due to its
caffeine
content.
The Seeds
of the
Coffee
plant's
fruits are
separated
to produce
unroasted
green
coffee
beans. The
beans are
roasted and
then
ground into
fine
particles
that are
typically
steeped in
hot water
before
being
filtered out,
producing a
cup of
coffee. It is
usually
served hot,
although
chilled or
iced coffee
is common
Coffee is a
beverage
prepared
from
roasted
coffee
beans.
Darkly
colored,
bitter, and
slightly
acidic,
coffee has
a
stimulating
effect on
humans,
primarily
due to its
caffeine
content.
The Seeds
of the
Coffee
plant's
fruits are
separated
to produce
unroasted
green
coffee
beans. The
beans are
roasted and
then
ground into
fine
particles
that are
typically
steeped in
hot water
before
being
filtered out,
producing a
cup of
coffee. It is
usually
served hot,
although
chilled or
iced coffee
is common
Coffee beans are roasted and we get the world’s favourite drink coffee. Now a
days, Coffee is become more commercialized and money making program.In the
modern factories, tons of Coffee beans are turned into many types of
coffee.Today coffee have many flavors in it as add ones. For example:
caramel,chocolate,vanilla,and so on, Today coffee is available for use much
guarded secret formula involving various seeds,different ingredients..And today
the coffee has many types like Filter Coffee,cappuccino,espresso,latte,cold
coffee…
COFFEE AND HEALTH:
Despite its bad reputation for causing anxiety, a number of health benefits may
be associated with this delicious treat: Lose weight Reduce depression Act as a
pain relief.Decrease the risk of heart problem.may stop the developing of
Parkinson's. While chocolates have many good effects on consuming , it also has
its own downsides caffeine is a stimulant which means it increases activity in brain
and nervous system and the body gets anxiety due to lack of sleep.The high
acidity of coffee can interfere with your hormones and impact the amount of oil
your skin produces
Aim:
To compare the caffeine content in different coffee samples:
➡Coca cola
➡coffee(sunrise)
➡red bull
➡black tea
➡green tea
➡decaffeinated coffee
MATERIALS REQUIRED:
A beaker
A 500ml of water(100 for each)
A vessel
The coffee sample🤍
cotton cloth(indicator)
PROCEDURE:
Organic and inorganic tests are done to find the caffeine content in coffee
samples. To compare the caffeine content we usually use lead acetate and
chloroform. But now we are finding with simple methods.
Organic and
inorganic
tests are
done to
find the
caffeine
content in
coffee
samples.
To compare
the caffeine
content we
usually
use lead
acetate and
chloroform.
But now
we are
finding with
simple
methods Organic and inorganic tests are
done to find the caffeine content in coffee samples. To compare the caffeine content we usually use lead
acetate and chloroform. But now we are finding with simple methods
SNO EXPERIMENT OBSERVATION INFERENCE
1 100ml of water mixed At the morning the Presence of caffeine in
with coffee powder cloth was indicating the the sample
poured in the vessel caffeine content
which is kept in the present in the sample.
beaker for 5 minutes at
high flame and the
cotton cloth is kept and
left it for the whole
night.
2 100ml of coca cola(soft At the morning the Presence of caffeine in
drink) poured in the cloth was indicating the the sample
vessel which is kept in caffeine content
the beaker for 5 present in the sample
minutes at high flame
and the cotton cloth is
kept and left it for the
whole night
3 100ml of water mixed At the morning the Presence of caffeine in
with red bull (soft cloth was indicating the the sample
drink) poured in the caffeine content
vessel which is kept in present in the sample
the beaker for 5
minutes at high flame
and the cotton cloth is
kept and left it for the
whole night.
4 100ml of water mixed At the morning the Presence of caffeine in
with black powder cloth was indicating the the sample
poured in the vessel caffeine content
which is kept in the present in the sample
beaker for 5 minutes at
high flame and the
cotton cloth is kept and
left it for the whole
night
5 100ml of water mixed At the morning the Presence of caffeine in
with green tea powder cloth was indicating the the sample
poured in the vessel caffeine content
which is kept in the present in the sample
beaker for 5 minutes at
high flame and the
cotton cloth is kept and
left it for the whole
night
6 100ml of water mixed At the morning the Presence of caffeine in
with decaffeinated cloth was indicating the the sample
coffee powder poured caffeine content
in the vessel which is present in the sample
kept in the beaker for 5
minutes at high flame
and the cotton cloth is
kept and left it for the
whole night
Despite its bad reputation for causing anxiety, a number of health benefits may be associated with this
delicious treat: Lose weight🍵 Reduce depression🍵 Act as a pain relief🍵Decrease the risk of heart
To
problem🍵may stop the developing of Parkinson's
compare
the
caffeine
content
in
different
coffee
samples
:
TEST RESULT:
All samples studied showed that they do contain caffeine.As we increase the
amount of caffeine it becomes less healthier.As we compare all the white clothes
we get coffee has more caffeine in it than every other samples .
CONCLUSION:
As we compare the test results we can conclude that green tea is healthier than the
other drinks and drinking coffee can be dangerous to health.
Bibliography:
https://www.studocu.com/in/document/delhi-public-school/
chemistry-sl/chemistry-project-coffee-analysis/95043509
