Basically you can proceed similar to competitions or other tasting events. It is a good idea to serve these blind. Let people try to guess what they are tasting then after a minute or two tell them. Many people will pick this up. Stress the fact that flavor perception is devoid of the additional cues like sight that allow perceptual recognition.
Feedback is encouraged.
It will help us revise this program. Slightly weak, some people couldn't detect this. We used a light relatively flavorless beer that was free of original defects. We chose Carling Black Label. The importance of a fresh beer to doctor can not be stressed enough.