DECAFFEINATION

THE REAL WORLD PROBLEM

PROBLEMS BY CAFFEINE

• Boosted Blood pressure
• Anxiety
• Insomia
• Digestive issues
• Muscle breakdown

OUR AIM AND HYPOTHESIS OF OUR EXPERIMENT

• Effect
• Colour will darken
• The process breaks down the internal structure
• 95%~

MATERIALS

• • Water 500ml • Coffee beans 3 table spoons • Paper towel • Activated charcoal 3 table spoons • iPads (for colour scale) • Beaker
• Spoon

METHOD

• Put 3 tablespoons of coffee beans into the beaker 2. Pour 500ml of water into the beaker 3. Add 2 tablespoons of activated charcoal in the beaker 4. Collect the coffee beans floating in the water with a spoon 5. Put the beans on a paper towel 6. Dry it with a paper towel 7. Grind the beans 8. Place the grinded beans on a safe surface. 13. Measure the caffeine with a colour scale and see what coffee has a darker colour. (Darker colour means decaffeinated)

Untitled Slide

WHAT HAPPENED

• We soaked the beans in water for 10mins.
• Put activated charcoal
• Bubbles formed
• Dried the beans
• It was darker than the normal coffee beans

COMPARISON WITH NORMAL COFFEE

OUR GRAPH

THE CONCLUSION

CONCLUSION OF OUR EXPERIMENt

• Experiment was successful
• The decaffeinated coffee beans ended up darker
• Our hypothesis was correct.
• Decaffeination was sucessful
• This is a effective technique for D.I.Y decaffeination.

Thank you for listening!