SuperCaf; How to supercharge your coffee while learning simple chemistry along the way

Step 2: 'Ingredients'

Picture of 'Ingredients'
You need a minimum of five things for this experiment:

Coffee grounds
A high precision scale (one that reads to .01 of a gram)
Citric acid (or another food grade acid)
Caffeine powder
A disposable pipette (not strictly needed)

All of these are just a google search away.