Make sure you brew your own organic coffee to avoid additives and if you choose decaf make sure it's water processed so that it is gluten free and doesn't have chemical residue from chemical decaffeination processing. (healyeatsreal.com)
Most decaffeination processes strip out the flavor along with the caffeine. (shopgourmet.com)
«There are three main decaffeination processes currently in use. (scientificamerican.com)