What you're advocating is called genocide. Genocide is bad.
We've tried this 'separating mentally ill from society' before - they were called asylums. We stopped doing that because they're inhumane. (There is an academic debate on if they're inherently such or simply attract/foster abuse, but were not having that debate today.)
What you're suggesting is an international crime and violation of human rights. Please reconsider.
Just label each with a cute yet distinct name. Then customers would associate each name with the blend they order, with bonus lore.