In this study, the simple HPLC method was
applied and used in the determination of caffeine in
Diet 3 in 1 instant coffee products. The results revealed
varying caffeine content in these products which can
cause health problemsif over consumed. Moreover,
none of the products specified the exact amount of
caffeine. They mentioned only the percent instant
coffee or coffee in the range of 12.0 to 25.8 percent