Roger Dooley’s post offers an aromatic idea;
“Dr Florian Koppelstatter of the Medical University Innsbruck, Austria, found that caffeine affects distinct areas of the brain. This study is beleived to be the first to demonstrate a visible impact on the brain from caffeine. Subjects who had been given caffeine showed significantly more activity in the frontal lobe and the anterior cingulum - areas of the brain associated with memory and attention. Subjects who received a placebo showed no such impact.”
When your customers drink coffee you have their attention, what do you want to tell them?