[harryhaghany]

Hallo dear Chemists,
I have recently experimented to investigate the optimum temperature for maximum caffeine content of instant coffee. I initially hypothesized that the maximum crude caffeine content can be extracted from instant coffee added to boiling water. To my surprise, however, it appears that 80 degrees celsius results in the maximum crude caffeine content. Now, I am writing a report on this, but I am still unsure about what exactly causes this. Shouldn't temperature increase solubility? Also, I extracted caffeine using chloroform. I look forward to your responses. Danke

[billnotgatez]

I am curious
Is the level the same or less for 90 C and 100 C  when compared to 80C?