Science feature - supercritical fluids

It's getting to that point in the afternoon where you might just feel like a cup of tea or coffee. If you use decaffeinated coffee though, do you actually know how it's made? Ruth Beran wants to find out, and meets with Owen Catchpole at IRL in Lower Hutt who explains the process to her, and why it has the highly technical name of:"supercritical fluid extraction".